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SAT数学算数部分的知识点介绍.

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  SAT数学考试是大家必须掌握的部分,希望大家能够认真对待,下面澳际小编为大家介绍下SAT数学考察范围总论,包括SAT数学考试内容,SAT数学算术部分的知识点,以及做SAT数学题的常用方法等等,希望对大家有所帮助。

  SAT数学考试内容

  1.所考题目特点:广而不精!

  2.所考察范围: 包括Arithmetic(算术),Algebra(代数),Geometry(几何)三部分

  3.复习策略:

  (1)自己所对应水平:

  (2)如何规避自己缺点:

  SAT数学算术部分知识点

  基本数学术语:

  1.数的表达方式:

  Integer 整数,fraction 分数,decimal 小数,real number 实数, rational number有理数

  Positive 整数,negative 负数,even 偶数,odd 奇数,positive integer 自然数

  2.关系表达:

  Add, plus 加法,sum 和;subtract,minus 减法,difference差;

  Multiply,times,by乘法,product积;divide 除法,quotient 商

  Power 乘方,cube 立方,square 平方

  点击在线索取:2015年最新SAT模考考题【小马版】

  3.运算结果:

  Ratios 比;Reciprocal, inverse 倒数; Remainder 余数; Average, mean 平均数

  Divisibility 整除; Denominator 分母;numerator分子

  4.其他

  Consecutive 连续:1,2,3,4.... 按顺序排列的数字

  Digit:从0-9的数字,379 is a three-digit number

  Units digit 个位

  Tens digit 十位—区别(tenths digit十分位)

  Hundreds digit 百位----(区别hundredths digit 百分位)

  Distinct 不同的:the distinct factors of 4 are 1, 2, 4. 而不是1, 2, 2, 4.

  Factor 因数:2 is a factor of 8.

  Prime 质数:没有因数的自然数

  Prime factor 质因数

  Divisibility 整除

  Percent increase of decrease=

  Median: 中位数

  Mode 众数:在一个数列中出现的最多的一个数

  Range:范围,一个数列的范围是指这个数列的最大值减去这个数列的最小值

  Set 集合

  Sequence 数列

  Intersection:交集; union:并集

  Probability and Combinations 概率与组合

  Standard Deviation 标准偏差 mean:(样本的)平均值

  SAT数学考试的常用方法

  且记,做SAT数学,你所用的方法越简单,你做对的概率越大!

  1.列举法

  2.代入法

  3.特殊值法

  列举法解题:

  (1)The units digit of 23333 is how much less than the hundredths digit of

  (A) 1 (B) 2 (C) 3 (D) 4 (E) 5

  (2)what is the units digit of 1597365?

  代入法解题:

  (1)Bob has a pile of poker chips that he wants to arrange in even stacks. If he stacks them in piles of 10, he has 4 chips lt over. If he stacks them in piles of 8, he has 2 chips lt over. If Bob finally decides to stack the chips in only 2 stacks, how many chips could be in each stack?

  A. 14 B. 17 C. 18 D. 24 E. 34

  (2)If x and y are two different integers and the product 35xy is the square of an integer, which of the following could be equal to xy?

  A. 5 B.70 C. 105 D. 140 E. 350

  (3) If x2=y3 and (x-y)2=2x, then y could equal

  (A) 64 (B) 16 (C) 8 (D) 4 (E) 2

  (4) For positive integers p, t, x and y, if px=ty and x-y=3, which of the following CANNOT equal t?

  A. 1 B. 2 C. 4 D. 9 E. 25

  (5)If 3t-3>6s+9 and t-5s<12, and s is a positive integer less than 4, then t could be any of the following EXCEPT

  A. 6 B. 8 C. 10 D.12 E. 23

  (6)If n and p are integers greater than 1 and if p is a factor of both n+3 and n+10, what is the value of p?

  A. 3 B. 7 C. 10 D. 13 E. 30

  特殊值法:

  (1) If x is a positive integer greater than 1, and x3-4x is odd, then x must be

  (A) even (B) odd (C) prime (D) a factor of 8 (E) divisible by 8

  (2)If the graph above is that of f(x), which of the following could be f(x)

  A. f(x)=

  B. f(x)=

  C. f(x)=|x)+3

  D. f(x)=|x+3|

  E. f(x)=|3x|

  (3) xy=x+y. If y>2, what are all possible values of x that satisfy the equation above?

  A. x<0, B. 02

  以上内容就是澳际小编为大家带来的SAT数学算数部分的知识点介绍及常用解题办法,可以看出,且记,做SAT数学,你所用的方法越简单,你做对的概率越大!你可以运用列举法,代入法,特殊值法等来解题,将事半功倍。

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