{"id":1319,"date":"2023-10-16T19:06:18","date_gmt":"2023-10-16T18:06:18","guid":{"rendered":"https:\/\/wp.catedu.es\/zgzsur\/?p=1319"},"modified":"2023-10-16T19:06:18","modified_gmt":"2023-10-16T18:06:18","slug":"mind-blowing-math-tricks","status":"publish","type":"post","link":"https:\/\/wp.catedu.es\/zgzsur\/mind-blowing-math-tricks\/","title":{"rendered":"Mind-blowing math tricks"},"content":{"rendered":"\n<div class=\"twitter-share\"><a href=\"https:\/\/twitter.com\/intent\/tweet?via=cpizaragozasur\" class=\"twitter-share-button\" data-size=\"large\">Twittear<\/a><\/div>\n<p><span style=\"font-size: 36pt;\">Here are ten mind-blowing math tricks that will impress your friends:<\/span><\/p>\n<ol>\n<li><strong>Magical Number 9:<\/strong>\n<ul>\n<li>Choose any number.<\/li>\n<li>Add its individual digits.<\/li>\n<li>Subtract the sum from the original number.<\/li>\n<li>The result will always be 9!<\/li>\n<\/ul>\n<\/li>\n<li><strong>Squaring Two-Digit Numbers Ending in 5:<\/strong>\n<ul>\n<li>To square a two-digit number ending in 5, take the first digit, multiply it by itself plus 1, and append 25 to the end.<\/li>\n<li>For example, to square 35, multiply 3 by (3+1) and append 25 to get 1225.<\/li>\n<\/ul>\n<\/li>\n<li><strong>11 Times Table Trick:<\/strong>\n<ul>\n<li>To quickly multiply a number by 11, split the number&#8217;s digits and add the adjacent pairs.<\/li>\n<li>For example, to multiply 23 by 11, add 2 and 3 to get 253.<\/li>\n<\/ul>\n<\/li>\n<li><strong>The Power of 9:<\/strong>\n<ul>\n<li>Pick any number.<\/li>\n<li>Multiply it by 9.<\/li>\n<li>The digits of the result will always add up to 9 or a multiple of 9.<\/li>\n<\/ul>\n<\/li>\n<li><strong>72 Trick for Multiplication:<\/strong>\n<ul>\n<li>To multiply any two-digit number by 72, double the number and then multiply by 36.<\/li>\n<li>Example: 24 x 72 = (24 x 2) x 36 = 48 x 36 = 1728.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Casting Out Nines:<\/strong>\n<ul>\n<li>A quick way to check if you&#8217;ve made an addition mistake. Add the digits of the sum and compare to the digit sum of the individual numbers. They should match.<\/li>\n<\/ul>\n<\/li>\n<li><strong>The Fibonacci Sequence:<\/strong>\n<ul>\n<li>The sum of any two consecutive Fibonacci numbers is approximately equal to the next Fibonacci number. (e.g., 3 + 5 = 8, 5 + 8 = 13, and so on.)<\/li>\n<\/ul>\n<\/li>\n<li><strong>Magic 1089:<\/strong>\n<ul>\n<li>Choose a 3-digit number with different digits (e.g., 723).<\/li>\n<li>Reverse the digits to form another number (e.g., 327).<\/li>\n<li>Subtract the smaller number from the larger one (723 &#8211; 327).<\/li>\n<li>Reverse the result (396) and add it to the previous result (396 + 693).<\/li>\n<li>You&#8217;ll always get 1089!<\/li>\n<\/ul>\n<\/li>\n<li><strong>The 3, 6, 9 Phenomenon:<\/strong>\n<ul>\n<li>Write down any 3-digit number.<\/li>\n<li>Add the individual digits.<\/li>\n<li>Subtract this sum from your original number.<\/li>\n<li>Repeat this process, and you&#8217;ll eventually end up with 369, a multiple of 3!<\/li>\n<\/ul>\n<\/li>\n<li><strong>The 7-13-17 Trick:<\/strong>\n<ul>\n<li>Choose a 2-digit number with different digits (e.g., 72).<\/li>\n<li>Add the number to its reverse (72 + 27).<\/li>\n<li>Divide the result by 9 (99\/9).<\/li>\n<li>The answer will always be 13.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p><strong>These math tricks are not only impressive but also fun to play around with. Enjoy amazing your friends with these mind-bending mathematical phenomena!<\/strong><\/p>\n\n<div class=\"twitter-share\"><a href=\"https:\/\/twitter.com\/intent\/tweet?via=cpizaragozasur\" class=\"twitter-share-button\" data-size=\"large\">Twittear<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Here are ten mind-blowing math tricks that will impress your friends: Magical Number 9: Choose any number. Add its individual digits. Subtract the sum from the original number. The result&#8230;<\/p>\n","protected":false},"author":355,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_s2mail":"yes","footnotes":""},"categories":[1],"tags":[229],"class_list":["post-1319","post","type-post","status-publish","format-standard","hentry","category-android","tag-maths-tricks"],"_links":{"self":[{"href":"https:\/\/wp.catedu.es\/zgzsur\/wp-json\/wp\/v2\/posts\/1319","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.catedu.es\/zgzsur\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wp.catedu.es\/zgzsur\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wp.catedu.es\/zgzsur\/wp-json\/wp\/v2\/users\/355"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.catedu.es\/zgzsur\/wp-json\/wp\/v2\/comments?post=1319"}],"version-history":[{"count":1,"href":"https:\/\/wp.catedu.es\/zgzsur\/wp-json\/wp\/v2\/posts\/1319\/revisions"}],"predecessor-version":[{"id":1320,"href":"https:\/\/wp.catedu.es\/zgzsur\/wp-json\/wp\/v2\/posts\/1319\/revisions\/1320"}],"wp:attachment":[{"href":"https:\/\/wp.catedu.es\/zgzsur\/wp-json\/wp\/v2\/media?parent=1319"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.catedu.es\/zgzsur\/wp-json\/wp\/v2\/categories?post=1319"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.catedu.es\/zgzsur\/wp-json\/wp\/v2\/tags?post=1319"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}