GMAT数学中很多考生拿不到高分原因在哪,大家觉得GMAT数学复习什么是最重要的?其实基础知识才是得到高分的关键,今天智课小编就来和大家分享下相关的信息,希望对大家备考起到帮助,也祝愿大家都能取得一个不错的成绩。

  GMAT数学基础介绍之整数:integer,whole number

  1.因子:factor or divisor

  If x and y are integers and x≠0,x is a divisor (factor) of y provided that y=xn for some integer n. In this case y is also said to be divisible by x or to be a multiple of x. For example, 7 is a divisor or factor of 28 since 28=7 4, but 8 is not a divisor of 28 since there is no integer n such that 28=8n.Divisible adj.可以被整除的  multiple n.倍数

  2.商和余数:quotients and remainders

  余数和商都可以为0

  3.奇数和偶数:odd and even integers

  奇数和偶数都可以是负数;零一定是偶数

  4.质数和合数:prime numbers and composite numbers

  A prime number is a positive integer that has exactly two different positive divisors,1 and itself. For example, 2,3,5,7,11, and 13 are prime numbers, but 15 is not, since 15 has four different positive divisors, 1, 3, 5, and 15. The number 1 is not a prime number, since it has only one positive divisor. Every integer GREater than 1 is either prime or can be uniquely expressed as a product of prime factors. For example, 14= (2) (7), 81= (3) (3) (3) (3), and 484= (2) (2) (11) (11).

  注:除了1和其本身外,还有其他因子的数叫合数。最小的质数为2,最小的合数为4,在讨论质数和合数时,都指正数。1和0既不是质数,也不是合数,以上是比较简单的数学GMAT考试介绍。

  5.GMAT考试整数中的重要概念:

  * Perfect square完全平方数,诸如9 = 32

  * Perfect cube 完全立方数,诸如8 = 23

  * the GREatest common divisor 最大公约数

  几个数所公有的最大因子称最大公约数,诸如:48与36的公因子有1,2,3,4,6,12,其中12为最大公约数。

  * the least common multiple最小公倍数

  几个数所公有的最小倍数称最小公倍数,诸如:3,7和14的最小公倍数为42。

  *连续正整数的算术平均值也是首项和末项的算术平均值。

  同理,连续奇数与连续偶数的算术平均值也是首项和末项的算术平均值。

  以上就是小编整理的GMAT考试关于数学方面复习重点的介绍,希望小编的GMAT考试介绍能给大家带来帮助。

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