{"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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=72fb00cd15e4f9ad6977a22f051f30db46355a98af3b7f3654128704b7cbf5ab\" 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=72fb00cd15e4f9ad6977a22f051f30db46355a98af3b7f3654128704b7cbf5ab 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=e21ba62e84e6bd5aba83f16c1f958623971d48e9b94c99672c8e282a8f26491f 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=e21ba62e84e6bd5aba83f16c1f958623971d48e9b94c99672c8e282a8f26491f\" 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=f823253138b6e86f10c96bf0f92341254f284ba08e6691c5061e9231479c3ebf\" 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=f823253138b6e86f10c96bf0f92341254f284ba08e6691c5061e9231479c3ebf 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=86ea107122c38ee0290fce4b7d3aa2c52a91d923f56d0d8881cfe994924ad0be 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=86ea107122c38ee0290fce4b7d3aa2c52a91d923f56d0d8881cfe994924ad0be\" 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=376f8e4d3b1ebd6f7a08f9da666da492d92a21950575bacc6cdd1c3f596fe3b0\" 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=376f8e4d3b1ebd6f7a08f9da666da492d92a21950575bacc6cdd1c3f596fe3b0 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=b6134a7154f4e7e20421b187301ad1e83978871965b5edb411fb7332de5369fe 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=b6134a7154f4e7e20421b187301ad1e83978871965b5edb411fb7332de5369fe\" 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=9afb5e6cb9e5eeab8f00508f3880025305b045fe833aeebe6db598e391f3e81a\" 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=9afb5e6cb9e5eeab8f00508f3880025305b045fe833aeebe6db598e391f3e81a 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=64e074fa4a7be58a1b1666ee6dc028c6f5c5a720ea7a0bc0466526506bd74120 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=64e074fa4a7be58a1b1666ee6dc028c6f5c5a720ea7a0bc0466526506bd74120\" 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=23c4593809f655a23a27adf36bbe063c71cfbe2c157eb021d40596bf12f448bb\" 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=23c4593809f655a23a27adf36bbe063c71cfbe2c157eb021d40596bf12f448bb 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=806d4152b20842a0781c21e3644807b586866520b57d52b04bf09ea7703ed4c5 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=806d4152b20842a0781c21e3644807b586866520b57d52b04bf09ea7703ed4c5\" 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=eb8affb8e043a987fc3917548f2ef1a70b59d2b9659be9038089815941fbe4e0\" 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=eb8affb8e043a987fc3917548f2ef1a70b59d2b9659be9038089815941fbe4e0 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=d494b86a86490c2aedc16e7da4f124f62f815d19066d7f8aa8f43947df7f6d6a 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=d494b86a86490c2aedc16e7da4f124f62f815d19066d7f8aa8f43947df7f6d6a\" 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=5f4422d4b98e734325c0a062ed35aed559dd9bb61d3b79ba9f6654da50d077de\" 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=5f4422d4b98e734325c0a062ed35aed559dd9bb61d3b79ba9f6654da50d077de 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=920d1a1319b2fdd4236369cb4d4c11cfc195011635681e6386fd9b39b97ae0a0 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=920d1a1319b2fdd4236369cb4d4c11cfc195011635681e6386fd9b39b97ae0a0\" 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=f4f23bb1c577a0a048e0206efb6e79e710a3a967344fb335a6011e9972808e1c\" 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=f4f23bb1c577a0a048e0206efb6e79e710a3a967344fb335a6011e9972808e1c 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=d88892f2bbfe5f83a2f7d0772a776bb0d5c0fb2daf0277b18ac40564ad6192a2 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=d88892f2bbfe5f83a2f7d0772a776bb0d5c0fb2daf0277b18ac40564ad6192a2\" 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=31a42536258ea00f96fc98f579e6085ef7ac6b79fe88c96e4fca18fc8c9ef454\" 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=31a42536258ea00f96fc98f579e6085ef7ac6b79fe88c96e4fca18fc8c9ef454 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=93267d1936ae881d8d421a1961c498a64467797663ccf8b7e05ea02d7b506a9a 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=93267d1936ae881d8d421a1961c498a64467797663ccf8b7e05ea02d7b506a9a\" 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=f775f630624c53d0dc8f818376ee050708025fb93f24a6e816548fe5b565f20d\" 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=f775f630624c53d0dc8f818376ee050708025fb93f24a6e816548fe5b565f20d 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=45ce79bd247d7597d32be6d30027ed4d2803f371bbb7e284cd3dbcd8d2f72d2f 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=45ce79bd247d7597d32be6d30027ed4d2803f371bbb7e284cd3dbcd8d2f72d2f\" 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=5439c74f12d7f3f0117606068526b59ef5a532ab353d0ed8e38377d4687fdad4\" 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=5439c74f12d7f3f0117606068526b59ef5a532ab353d0ed8e38377d4687fdad4 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=99683f53e4bcaf28ba7dcb4cd6b7a4d7addefdb67526374d4db48acd5114b65c 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=99683f53e4bcaf28ba7dcb4cd6b7a4d7addefdb67526374d4db48acd5114b65c\" 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=f591ca696ae69374050e808505f7037b990a1425e3563e9e62d1318b8777c26e\" 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=f591ca696ae69374050e808505f7037b990a1425e3563e9e62d1318b8777c26e 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=84940b4040ebcfd84a6cb554f7a6d4c20d6329ce188fd95fc15fed937ea7c585 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=84940b4040ebcfd84a6cb554f7a6d4c20d6329ce188fd95fc15fed937ea7c585\" 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=a79581e65e588e918f9fa8fc45b66718bc73465f27976ebd784e5056e9485f9c\" 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=a79581e65e588e918f9fa8fc45b66718bc73465f27976ebd784e5056e9485f9c 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=def761297cca43aa163e25a7c986801b8ac1088ac29704a0e713b4d91b16a69f 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=def761297cca43aa163e25a7c986801b8ac1088ac29704a0e713b4d91b16a69f\" 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=5047b386d21dba3fcb334681f89136204ba6856e1eff3ed86368c35161cc015b\" 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=5047b386d21dba3fcb334681f89136204ba6856e1eff3ed86368c35161cc015b 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=3e0e8296d1799319af830ec7f68485b66b14df981805828a3d00237fa5de2770 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=IQoJb3JpZ2luX2VjEEwaCWV1LXdlc3QtMSJHMEUCIBOCKALfc%2BRVylL83dAxAg%2F8YdNsGLzrly9QeuASW00oAiEAkerWuHXFLGp0pqW8OlmIJ8DcIqy4eAs9PR5TJm0VAJwquQUIFRAFGgwyNzM1NzAxOTU0MzMiDII%2Bqy3B9%2Fl6pF2kJiqWBXao%2BgMAoDm7ItvAdLqqFnkaj9H6cWfYd5LOcLKNAyUp8ExyO%2Ba7%2FH9YHwUFEYbUZJIkwHGlJu0y6jj11HsWsThBKt8sX%2BftC%2FWHZixDqFMYEbh9rXCq4MAgif4H5nDplIDJvTCv5GTk19Ngs22TdLrdCJZ9CNO%2BGbrgSBilXnK2WVelj4T%2F%2FxudnaN9ARBlIUdTfsKVdxU4IUVoJI9komqcZZeldVUMPBIb3wslwGJafOR7ts%2FXaGkDG7oanuzFh5qkG29WGixOEdD3oa8USi3bUMHr1MWMy%2BjDefghknwZk9PXgfidcTT1EbkJIM%2Fl2bnz3oxsb22NG%2Fg%2BLnlLopxVQZ0deGyQeumTFhmNW78AoA8j9BmwaVJiU%2F7obPjU9iU2CLJ4Q%2BxafKmQOYpyG75WBdW%2BpURmsMuDOdvGQK4oyGEYkN%2Bq%2FEmqGVXy4G9L2s2FnS%2BEaKZKRdZN5z7Aiu0dicdin0zkswI8HwA2MfjaGSOX6lhhVSS8d4fBc662rphOYqeC1Yjgll%2FVHV0bxgDVS5Qb29yg6uHNx9kVJoQUVhOaTG8QObNpWQvbJncMpwcGacqQwtNminB3wR8q6dIXJeUKT8EcvYWlHuXn567ckR%2Fa5o6CqkQ9D6uYWllN%2BuEjTThbJF%2FpuV7fACalGEM6RGiKRba1e%2F0BMSOVpecwcKMuuszdUTk%2Fg2I9X%2F9U6p9lh5zpQMNL%2BxMi3RwaamCa1C8w4tSZ1vzOLZk0lwVsqVKKhekihA0IwLZdsRmlzhi4UCF6G8nZ6%2FXQqygeYkmvhdp02vG0E4ynJ%2Fs0jDxbk%2BpYSluw%2FocrEWkapduMmz3MNatYTv%2FKOKDoRf5RPVzE3jRDc%2Bk2kHaoo%2F%2B7bjWH7XOvkdb%2BMObM2NIGOrEBpEI6koZ7sqAw9vOdBnBDb4buJ%2FnQtuxywgTvYihbgUahFWauesSLHW7AlxWgerm1dG6uFnWzGJG7LPSP5Iqa1duO7%2BHXQyzAZhSVUnjynfQLIxKdyyR%2FCOgmLLpooVDwCjqU8KQasxpCRdtL%2B64uOy59o2TvY2ktgQty3h%2BqXA3yJDCzvI5maP7Jut8osmNmST0GCw3lSWgs%2BQ5CRbxFqAfmWhWAs6l86W%2BbdF8VWOnE&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47USFFG77KM%2F20260714%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260714T121408Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=3e0e8296d1799319af830ec7f68485b66b14df981805828a3d00237fa5de2770\" 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}]}}