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2014新gre考试实施以来，不仅对写作部分茫然不知所措，就连我们所擅长的数学也甚是担忧，相信这其中的原因还是由于考生在新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。 天针对新版gre数学复习，小编给大家整理的是关于平均数的相关内容，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。 AP Average of n numbers of arithmetic progression is the average of the smallest and the largest number of them. The average of m number can also be written as x + d/2. Example: The average of all integers from 1 to 5 is /2=3 The average of all odd numbers from 3 to 3135 is /2=1569 The average of all multiples of 7 from 14 to 126 is /2=70 remember: Make sure no number is missing in the middle. With more numbers, average of an ascending AP increases. With more numbers, average of a descending AP decreases. AP:numbers from sum given the sum s of m numbers of an AP with constant increment d, the numbers in the set can be calculated as follows: | 
