{"id":1395,"date":"2013-03-15T16:10:57","date_gmt":"2013-03-15T15:10:57","guid":{"rendered":"https:\/\/blogs.glowscotland.org.uk\/er\/Busby\/?p=1395"},"modified":"2013-03-15T16:10:57","modified_gmt":"2013-03-15T15:10:57","slug":"maths-puzzle-for-the-weekend-magic-mental-maths","status":"publish","type":"post","link":"https:\/\/blogs.glowscotland.org.uk\/er\/Busby\/2013\/03\/15\/maths-puzzle-for-the-weekend-magic-mental-maths\/","title":{"rendered":"Maths Puzzle for the Weekend – Magic Mental Maths!"},"content":{"rendered":"

\"\"<\/a><\/p>\n

Can you explain how these tricks work?
\nCan you make up you own similar trick?<\/p>\n

For a real challenge – can you use algebra to explain how these tricks work?<\/p>\n

\u00a0<\/p>\n

\u00a0<\/p>\n

Try each set of instructions at least two or three times with different numbers. Notice what answer you get each time.<\/p>\n\n\n\n\n\n\n\n\n\n\n
1.<\/td>\nThink of a number<\/td>\n<\/tr>\n
2.<\/td>\nAdd 4 to it<\/td>\nAdd 7 to it<\/td>\nAdd 5 to it<\/td>\n<\/tr>\n
3.<\/td>\nDouble the result<\/td>\nMultiply the answer by 3<\/td>\nMultiply the answer by 4<\/td>\n<\/tr>\n
4.<\/td>\nTake away 6<\/td>\nSubtract 9<\/td>\nSubtract 8<\/td>\n<\/tr>\n
5.<\/td>\nHalve the result<\/td>\nDivide the answer by 3<\/td>\nDivide the answer by 4<\/td>\n<\/tr>\n
6.<\/td>\nSubtract the number you first thought of<\/td>\n<\/tr>\n
7.<\/td>\nWHAT DO YOU GET?<\/td>\n<\/tr>\n
8.<\/td>\nNow try again with other numbers and see what you get<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Can you explain how these tricks work? Can you make up you own similar trick? For a real challenge – can you use algebra to explain how these tricks work? \u00a0 \u00a0 Try each set of instructions at least two or three times with different numbers. Notice what answer you get each time. 1. Think … Continue reading Maths Puzzle for the Weekend – Magic Mental Maths!<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":3344,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10168,277],"tags":[10197,22190],"class_list":["post-1395","post","type-post","status-publish","format-standard","hentry","category-maths-problems","category-num-mat","tag-maths-problem","tag-maths-problems"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/blogs.glowscotland.org.uk\/er\/Busby\/wp-json\/wp\/v2\/posts\/1395","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.glowscotland.org.uk\/er\/Busby\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.glowscotland.org.uk\/er\/Busby\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/er\/Busby\/wp-json\/wp\/v2\/users\/3344"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/er\/Busby\/wp-json\/wp\/v2\/comments?post=1395"}],"version-history":[{"count":5,"href":"https:\/\/blogs.glowscotland.org.uk\/er\/Busby\/wp-json\/wp\/v2\/posts\/1395\/revisions"}],"predecessor-version":[{"id":1401,"href":"https:\/\/blogs.glowscotland.org.uk\/er\/Busby\/wp-json\/wp\/v2\/posts\/1395\/revisions\/1401"}],"wp:attachment":[{"href":"https:\/\/blogs.glowscotland.org.uk\/er\/Busby\/wp-json\/wp\/v2\/media?parent=1395"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/er\/Busby\/wp-json\/wp\/v2\/categories?post=1395"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/er\/Busby\/wp-json\/wp\/v2\/tags?post=1395"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}