{"id":402,"date":"2013-10-28T14:34:48","date_gmt":"2013-10-28T14:34:48","guid":{"rendered":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/?p=402"},"modified":"2013-10-28T14:36:22","modified_gmt":"2013-10-28T14:36:22","slug":"scratch-calculations-2","status":"publish","type":"post","link":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-calculations-2\/","title":{"rendered":"Scratch &#8211; Calculations"},"content":{"rendered":"<p>Calculations are performed using numeric operators (+-\/*)<\/p>\n<p><a href=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/3-Calculations.ppt\">Calculation Slides<\/a><\/p>\n<p><!--more--><\/p>\n<div data-carousel-extra='{&quot;blog_id&quot;:12638,&quot;permalink&quot;:&quot;https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-calculations-2\/&quot;}' id='gallery-1' class='gallery galleryid-402 gallery-columns-3 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide011.png'><img decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide011-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014747Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=6af69972835c90806627dacaf5a8701beebe8f0636ea4f050a1ae24adb349d4f\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide011-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014747Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=6af69972835c90806627dacaf5a8701beebe8f0636ea4f050a1ae24adb349d4f 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide011-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014747Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=301294f840b6602095a5aacd9a15b0a97e6a93b5bff3cb3b46c14e4b30573668 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide011.png 800w\" sizes=\"(max-width: 150px) 100vw, 150px\" data-attachment-id=\"403\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-calculations-2\/slide01-5\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide011.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide01\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide011-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014747Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=301294f840b6602095a5aacd9a15b0a97e6a93b5bff3cb3b46c14e4b30573668\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide011.png\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide021.png'><img decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide021-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014747Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=7a185199a7b8f6d8afa70c5daaff13140330d5bb2eb9003c5a68bfd74bfc500e\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide021-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014747Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=7a185199a7b8f6d8afa70c5daaff13140330d5bb2eb9003c5a68bfd74bfc500e 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide021-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014747Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=2a74d98b31d42109817c095b94bd846dceb3d01b62b7a49809e6601adb733f43 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide021.png 800w\" sizes=\"(max-width: 150px) 100vw, 150px\" data-attachment-id=\"404\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-calculations-2\/slide02-5\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide021.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide02\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide021-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014747Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=2a74d98b31d42109817c095b94bd846dceb3d01b62b7a49809e6601adb733f43\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide021.png\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide031.png'><img decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide031-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014747Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=5b04eb24687c766056f4fb3083a3aa55e030127a28c4c8ef3b97656475bd6417\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide031-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014747Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=5b04eb24687c766056f4fb3083a3aa55e030127a28c4c8ef3b97656475bd6417 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide031-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014747Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=03854cc9567540955f4f593bc914c524c37d4ce97dfb37990d355a00de4a0175 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide031.png 800w\" sizes=\"(max-width: 150px) 100vw, 150px\" data-attachment-id=\"405\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-calculations-2\/slide03-5\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide031.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide03\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide031-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014747Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=03854cc9567540955f4f593bc914c524c37d4ce97dfb37990d355a00de4a0175\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide031.png\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide041.png'><img decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide041-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014747Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=a5810c31786ee52a9be885be6a4f4161683fb659a54cdffdea833235bf8e8ac9\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide041-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014747Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=a5810c31786ee52a9be885be6a4f4161683fb659a54cdffdea833235bf8e8ac9 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide041-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014747Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=9ab2e6449717505e4adb373a91ac5a70649974eb7a178395ac8ded0f32871506 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide041.png 800w\" sizes=\"(max-width: 150px) 100vw, 150px\" data-attachment-id=\"406\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-calculations-2\/slide04-6\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide041.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide04\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide041-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014747Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=9ab2e6449717505e4adb373a91ac5a70649974eb7a178395ac8ded0f32871506\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide041.png\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide051.png'><img decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide051-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014747Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=f99a4f7aadb202eee023787df05d618532517e15d71a266b9d09e38a7186f896\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide051-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014747Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=f99a4f7aadb202eee023787df05d618532517e15d71a266b9d09e38a7186f896 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide051-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014747Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=e9909a674925e12510a7e10704cd241c037117e0ff1162699ef9925b67559e3f 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide051.png 800w\" sizes=\"(max-width: 150px) 100vw, 150px\" data-attachment-id=\"407\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-calculations-2\/slide05-6\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide051.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide05\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide051-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014747Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=e9909a674925e12510a7e10704cd241c037117e0ff1162699ef9925b67559e3f\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide051.png\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide061.png'><img decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide061-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=1d0b2a099289fd6266b02201ad430f3af3348dd138bf1f2eabdd1dba5ba3a760\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide061-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=899&amp;X-Amz-Signature=2cf89793eaeaf8717bdf2063a869fcce47e6ac0b341a5461100784749c184bc5 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide061-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=417481c3e68e8576b4afb539b62dd6db799949c384d100289cd30a6aa9fbe2d6 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide061.png 800w\" sizes=\"(max-width: 150px) 100vw, 150px\" data-attachment-id=\"408\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-calculations-2\/slide06-6\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide061.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide06\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide061-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=417481c3e68e8576b4afb539b62dd6db799949c384d100289cd30a6aa9fbe2d6\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide061.png\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide071.png'><img decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide071-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=218fec44eb84906ec703557c414d440afe8bdb0356c581b1512320260323af68\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide071-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=218fec44eb84906ec703557c414d440afe8bdb0356c581b1512320260323af68 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide071-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=786218f937d2c813a95116243ed6651f769a6cb77f0f26f0820977288e242b86 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide071.png 800w\" sizes=\"(max-width: 150px) 100vw, 150px\" data-attachment-id=\"409\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-calculations-2\/slide07-6\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide071.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide07\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide071-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=786218f937d2c813a95116243ed6651f769a6cb77f0f26f0820977288e242b86\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide071.png\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide081.png'><img decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide081-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=9c44617f513640b39f257acdb912e47b8543cab43af87355f6e1e41cdc695bd1\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide081-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=9c44617f513640b39f257acdb912e47b8543cab43af87355f6e1e41cdc695bd1 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide081-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=1e3a047e2648a72a6740663689326703a7f69ae1425cf9e33adbd5d6672a9d77 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide081.png 800w\" sizes=\"(max-width: 150px) 100vw, 150px\" data-attachment-id=\"410\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-calculations-2\/slide08-6\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide081.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide08\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide081-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=1e3a047e2648a72a6740663689326703a7f69ae1425cf9e33adbd5d6672a9d77\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide081.png\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide091.png'><img decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide091-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=ea7f093e628a0f4a3fb21a5f67f44e9531cb85450259a8291d885f37500f6c17\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide091-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=ea7f093e628a0f4a3fb21a5f67f44e9531cb85450259a8291d885f37500f6c17 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide091-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=9b0ee2796d43e35dbe14ec352a5888e9e4d19212f00547aa2440da26b99b1192 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide091.png 800w\" sizes=\"(max-width: 150px) 100vw, 150px\" data-attachment-id=\"411\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-calculations-2\/slide09-6\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide091.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide09\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide091-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=9b0ee2796d43e35dbe14ec352a5888e9e4d19212f00547aa2440da26b99b1192\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide091.png\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide101.png'><img decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide101-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=5549b8cd985013762d77726acf0eaa57c8b69b8c192e060eaf2180b9893472ad\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide101-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=5549b8cd985013762d77726acf0eaa57c8b69b8c192e060eaf2180b9893472ad 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide101-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=69ff6e4db1e32a19919f3d13973d67e63db58b693787a2512dcde4c0f76b92e6 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide101.png 800w\" sizes=\"(max-width: 150px) 100vw, 150px\" data-attachment-id=\"412\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-calculations-2\/slide10-6\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide101.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide10\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide101-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=69ff6e4db1e32a19919f3d13973d67e63db58b693787a2512dcde4c0f76b92e6\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide101.png\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide111.png'><img decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide111-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=491300f4076b2d11d5825083c17f3d902ce9539c7212a8c1aa429086fd054421\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide111-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=491300f4076b2d11d5825083c17f3d902ce9539c7212a8c1aa429086fd054421 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide111-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=1d73331292a7c058c3936c07360daa312da4b30bffff06164e0253bd99532a63 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide111.png 800w\" sizes=\"(max-width: 150px) 100vw, 150px\" data-attachment-id=\"413\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-calculations-2\/slide11-6\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide111.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide11\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide111-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=1d73331292a7c058c3936c07360daa312da4b30bffff06164e0253bd99532a63\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide111.png\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide121.png'><img decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide121-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=b6336061e42dace1b578ad7def2f03f882f6d27887194c2d05f1385a9da4a5ce\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide121-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=b6336061e42dace1b578ad7def2f03f882f6d27887194c2d05f1385a9da4a5ce 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide121-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=f04c7b596a4608aefed5d4e8ab020660c79f002776c8d4d965dc57a75cc5b8b1 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide121.png 800w\" sizes=\"(max-width: 150px) 100vw, 150px\" data-attachment-id=\"414\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-calculations-2\/slide12-6\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide121.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide12\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide121-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=f04c7b596a4608aefed5d4e8ab020660c79f002776c8d4d965dc57a75cc5b8b1\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide121.png\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide131.png'><img decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide131-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=3ea01f33897d14ecbd8d2d67b876158636a9eb39cf2a7d27d562eeffa169eab4\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide131-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=3ea01f33897d14ecbd8d2d67b876158636a9eb39cf2a7d27d562eeffa169eab4 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide131-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=dad5f0b675af06eb239001bf757b3565f2057bb0b040223e4163b78efa3e5ddd 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide131.png 800w\" sizes=\"(max-width: 150px) 100vw, 150px\" data-attachment-id=\"415\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-calculations-2\/slide13-6\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide131.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide13\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide131-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=dad5f0b675af06eb239001bf757b3565f2057bb0b040223e4163b78efa3e5ddd\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide131.png\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide141.png'><img decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide141-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=5dcfe2a5b144b2cc17a07ae38e908c16a87c874cf5f1b24ba87431e0aaa6032e\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide141-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=5dcfe2a5b144b2cc17a07ae38e908c16a87c874cf5f1b24ba87431e0aaa6032e 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide141-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=7f64e4979c3c42ce6018c06d58d75eb64c3d7ffa5b8d3e8a527ef497c71d06cd 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide141.png 800w\" sizes=\"(max-width: 150px) 100vw, 150px\" data-attachment-id=\"416\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-calculations-2\/slide14-6\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide141.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide14\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide141-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIH%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIDrXk%2BqD0Auq4uinnqpvJuk1o9zeRzwQ54OfKZyF48dIAiEAg41g9wllnqDWbHRbyC%2F2GoSl7lJXpqy8zZCmfigL6xIquAUIShAFGgwyNzM1NzAxOTU0MzMiDA9cGcg0JxRZITpI6yqVBR8owqU5ARLyW1sEGM2lazz879CXICZsWOMGKeyhJ2A6wJtPQkvL6hFZw4955w5b8WJHvroDffHND0BeLBG07oic%2FW1UQC7QKejG1p2aAoYGfrIT1k5b%2FgZR0UO7NKncBS6jWfmlZ0KZMnhe1VuaWg%2FOK%2Fs4U%2FKp8CNIuchcusqB0U8k7NE1YWwTFCfAFn5n3KILIAyfeOL8t6ZDDAOeYNI1tFwLI%2Bxye1bp%2FygUtowVQnu2rtVK%2FxaRiKHdWc7%2BOAyuIovZ9K7Vl0mFlQJeNU9QbUoGQ%2FIsVN2JzzMumEe87tECeB3u5jZ51xMf3zP5Sbirxzv3c2cvT%2B3VvyvSTOflr%2BfgjFtMsKAUw2CZcYqg0zRh1RFs%2FxWXWdvLypoAY11M3oxq%2B4vBTLuZcKaFNa5OiGGlCvXETWsurpEFYoiGVKHCoFDKF9OzhrVPv1FDcqaqUs%2FwmOL4FP%2FnHd4ic%2FKgvoo6NsW5vtEarKSoADCHvYm7GpLa7swMeOG8qInVNcjtq5YOwSBwouMALupM5wSMRgj5ReKImK%2FJiQTBocZ2w33z%2FWDa%2BVf25S4bng3vNf%2FeNQDTP%2FVZ4glhPvMjsg8IEgW5U%2B1tGs7qT8Qpqocruubqa1SwoU%2BGIZtn%2BSx1J8GkN%2BaszqXkNsfTc6iiJhZ9FHQBBdqdq8k8jJAN4H3OjdsP7FUKzNCuWM4LrSFtF4LzFyTwFyhp81ePyr3xbCkhe4BZmgQbPDRHqH9hEpGjphWlo%2Bcd0Qi0gLmg9LhN%2F8yo4%2Fkn4QtealwTdZMh2vcxwBjwcNeucQdEnqJLnKMOzxGEfvZDQc1%2BggC%2FpwLyj0Ne54viYB4X8I13T17a2bhzqTxjxX040B40tpjkoBbNm6ovsBcwst3U0wY6sQFi%2F529LykySxKwbAFnHmJ5r3c8WexQiF82eNomng3L5JAxPcGlFixQD1gtBS2afJ9Gh1V3I1EQ5dRxGmPUDqCindp4RBHQerHAci8lQRhBTXmkcirYbWfc38ZvAaRBwgXoAHTUDbCHo5J5V4%2Bw24r%2B9lI2m4E4rfYT%2BmBWnH5%2FAHowOsbiq%2FAknYGvGk%2FxCRrR8JMuaRJzPmyYKzVuHDTBXudjz%2BDAlnf%2BVP3%2FjpoqQFg%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UQK2KHYL6%2F20260807%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260807T014748Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=7f64e4979c3c42ce6018c06d58d75eb64c3d7ffa5b8d3e8a527ef497c71d06cd\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide141.png\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>Calculations are performed using numeric operators (+-\/*) Calculation Slides<\/p>\n","protected":false},"author":32,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17932,17012,17009],"tags":[9709,23837,23835,23836],"class_list":["post-402","post","type-post","status-publish","format-standard","hentry","category-computational-constructs","category-national-4","category-software-design-devlopment","tag-number","tag-numeric","tag-operator","tag-variable"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/posts\/402","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/users\/32"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/comments?post=402"}],"version-history":[{"count":2,"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/posts\/402\/revisions"}],"predecessor-version":[{"id":419,"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/posts\/402\/revisions\/419"}],"wp:attachment":[{"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/media?parent=402"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/categories?post=402"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/tags?post=402"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}