{"id":10815,"date":"2012-04-02T09:00:11","date_gmt":"2012-04-02T16:00:11","guid":{"rendered":"https:\/\/gmatclub.com\/blog\/?p=10815"},"modified":"2012-04-02T12:19:13","modified_gmt":"2012-04-02T19:19:13","slug":"sneak-peek-new-gmat-official-guide-13th-edition-math","status":"publish","type":"post","link":"https:\/\/gmatclub.com\/blog\/sneak-peek-new-gmat-official-guide-13th-edition-math\/","title":{"rendered":"Sneak Peek: New GMAT Official Guide 13th Edition Math"},"content":{"rendered":"

\"\"Advanced copies of the 13th edition of the GMAT Official Guide (turquoise cover) have been released.<\/p>\n

Changes in Problems Used<\/h2>\n

The vast majority of the math questions in the 12th edition Official Guide appear verbatim but in a different order, than in the 13th edition.\u00a0 Here's a list of questions in the OG 12 that have not been reused in the OG 13:<\/p>\n

Problem Solving<\/strong><\/span><\/p>\n

2, 5, 18, 42, 46, 47, 48, 51, 52, 53, 55, 56, 59, 73, 74, 81, 86, 87, 88, 89, 91, 107, 111, 117, 148, 151, 163, 178, 179, 180, 181, 182, 183*, 184, 185, 186, 187, 188, 189, 190, 191, 197, 199, 203, 220, 227.<\/p>\n

 <\/p>\n

Data Sufficiency<\/strong><\/span><\/p>\n

13, 16, 17, 18, 19*, 22, 26, 27, 28, 32*, 33, 36, 41, 42, 45, 46, 48, 53, 59, 62, 66, 71, 72, 75, 76, 79, 82, 90, 91, 94, 98, 110, 141, 148, 164*, 170.<\/p>\n

*indicates a question that has not be used verbatim, but which seems to have served as the inspiration for a new question in the OG 13.<\/p>\n

 <\/p>\n

New GMAT Math Trends<\/h2>\n

The questions removed cover a wide range of topics, as do the new questions added, so it's really impossible to say much that would encapsulate all the changes.<\/p>\n

I notice two trends.\u00a0 First, there seems to be increased attention to some slightly more sophisticated algebra, including recognition and use of the difference of two squares pattern:<\/p>\n

\"\"<\/p>\n

The second seems to be increased attention to number properties \u2014 already a huge topic.\u00a0 In particular, there is some new focus on decimals and patterns involving decimals.<\/p>\n

 <\/p>\n

Integrated Reasoning<\/h2>\n

Just so everyone is clear: the printed copy of new book, the OG 13, does not have IR problems.\u00a0 The printed OG 13 has a short 11 page overview the IR question format.\u00a0 Interestingly, their section on Graphics Interpretation includes a couple new types of charts not mentioned on the original GMAC website posting information on this question.\u00a0 These include<\/p>\n

1) bubble charts<\/strong> \u2014 this is a kind of a scatterplot which, instead of points or dots, has circles of varying radii \u2014 the radii of the circles indicate a third variable independent of the x- and y-axis.\u00a0 The Wikipedia article has a few good images: https:\/\/en.wikipedia.org\/wiki\/Bubble_chart<\/a><\/p>\n

2) flow charts<\/strong> \u2014 these charts show steps in a process, and what to do given different decisions at different points in the process.\u00a0 Here are a couple humor flow charts, one on learning how to cook (https:\/\/xkcd.com\/854\/<\/a>), one giving a humorous generalization of tech support (https:\/\/xkcd.com\/627\/<\/a>) and one simply on understanding flow charts (https:\/\/xkcd.com\/518\/<\/a>)<\/p>\n

3) organization chart<\/strong> \u2014 these show the levels of a hierarchy: who's on the same level as who, and who's above\/below who.\u00a0 Here's the organization chart for the US government, in case you were curious: https:\/\/www.netage.com\/economics\/gov\/Gov-chart-top.html<\/a><\/p>\n

Again, there are no practice IR questions in the print version of the 13th edition of the Official Guide.\u00a0 Each copy of the 13th edition comes with a code that gives the user access to GMAC's companion website with 50 IR questions.<\/p>\n

As always, what's the best way to prepare for this?\u00a0 With Magoosh<\/a>, you will get all the content & strategy you need in video form, 800+ practice questions, each with its own video explanation, and responsive support for any questions you have.\u00a0 <\/em><\/p>\n

This post was written by Mike McGarry, GMAT Expert at Magoosh, and originally posted here<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

Advanced copies of the 13th edition of the GMAT Official Guide (turquoise cover) have been released. Changes in Problems Used The vast majority of the math questions in the 12th…<\/p>\n","protected":false},"author":133,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9,783,243,544,718,717,736],"tags":[],"class_list":["post-10815","post","type-post","status-publish","format-standard","hentry","category-gmat","category-magoosh-blog","category-blog","category-data-insights","category-data-sufficiency-gmat","category-problem-solving-gmat","category-quant-gmat","entry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/gmatclub.com\/blog\/wp-json\/wp\/v2\/posts\/10815","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gmatclub.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gmatclub.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gmatclub.com\/blog\/wp-json\/wp\/v2\/users\/133"}],"replies":[{"embeddable":true,"href":"https:\/\/gmatclub.com\/blog\/wp-json\/wp\/v2\/comments?post=10815"}],"version-history":[{"count":4,"href":"https:\/\/gmatclub.com\/blog\/wp-json\/wp\/v2\/posts\/10815\/revisions"}],"predecessor-version":[{"id":10817,"href":"https:\/\/gmatclub.com\/blog\/wp-json\/wp\/v2\/posts\/10815\/revisions\/10817"}],"wp:attachment":[{"href":"https:\/\/gmatclub.com\/blog\/wp-json\/wp\/v2\/media?parent=10815"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gmatclub.com\/blog\/wp-json\/wp\/v2\/categories?post=10815"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gmatclub.com\/blog\/wp-json\/wp\/v2\/tags?post=10815"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}