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俗话说：工欲善其事必先利其器。很多参加了新版gre考试的同学都觉得数学有点难度，相信这其中的原因还是由于考生在新版gre数学复习时没有把基础打牢。如果新版gre数学基本考点都没有复习到，如何能拿到分数呢?所以说，想要新版gre数学考好，复习的时候一定要把基本概念和重要考点都弄扎实。 今天针对新版gre数学复习，小编给大家整理的是关于Combinations of Choices的相关内容，这些概念在考试中一定会考到的。希望考生能再接再厉，取得一个好成绩，突破新版gre数学难的困境。 新版gre数学复习重要考点：Combinations of Choices If there are n choices for one type and m choices for second type, then number of combinations for both types is the product of choices:nm. Example: If there are 3 kinds of breads to choose from and 4 kinds of meats, then we can make 34=12 different sandwiches. If an alphabet has 26 letters, then the number of possible 2 letter word is 2626=676.All of them may not be vaild words. Remember: Do not add the choices to get the total combinations. | 
