SAT数学考试的三个解题技巧

2019-05-20 09:16 1027143次浏览
分享至:


  我们希望所有的同学和家长,也能用理性的,有逻辑的态度来面对新SAT考试,SAT考试是一个非常强调逻辑能力的考试,新SAT在这个方面不仅没有减弱,还有加强,把注意力都集中在如何改善能力的方法和内容上,这才是获得高分的唯一有效途径。那么今天小编就带来了SAT数学考试中常用的解题技巧,我们一起来看看吧!


SAT数学考试的三个解题技巧


  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 left over. If he stacks them in piles of 8, he has 2 chips left 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. 0<x<1 C.0<x<2 D.1<x<2 E. x>2


  虽然SAT中的数学部分是咱们中国考生复习起来最得心应手的一门,这是因为很多知识点童靴们在高中学习时都会涉及,而且SAT考查的又比较浅显,对于这部分的内容,童靴们只需要排查考点,找到知识漏洞,再完善知识结构就行了。如果想了解更多SAT网络课程可以持续关注本网站!


SAT数学考试的三个解题技巧


猜你喜欢

1 / 3
获取专属留学方案
选择教育程度
  • 小学
  • 初中
  • 高中
  • 大学
图片验证码
提交