相较于其他科目来说，SAT数学不是特别难，但是想要考出SAT高分也是不容易的，在备考中掌握一些解答的技巧，并且合理的应用，今天小编就带着大家了解两种解题手段以及真题的训练！

　　(1) 排除法。考生在考试的时候，在认真审题后，就要试着合理地排除答案。比如，我们很确定结果是正数，那么把负数的答案全部去掉。这样，可以节约很多时间。

　　(2) 设定法。比如，一些数学题中经常出现相当难记的抽象变量，考生不妨尝试一些具体的数字来代替它们，从而简化计算。

　　SAT数学练习题之一

　　If a2 = 12, then a4 =

　　A. 144

　　B. 72

　　C. 36

　　D. 24

　　E. 16

　　Correct Answer: A

　　解析:

　　a4 = a2 x a2 = 12 x 12 = 144

　　SAT数学练习题之二

　　If n is even, which of the following cannot be odd?

　　I n + 3

　　II 3n

　　III n2 – 1

　　A. I only

　　B. II only

　　C. III only

　　D. I and II only

　　E. I, II and III

　　Correct Answer: B

　　解析:

　　In case I , even plus odd will give odd. In case II, odd times even will give even. In case III even squared is even, and even minus odd is odd. (You can check this by using an easy even number like 2 in place of n). Only case II cannot be odd.

　　SAT数学练习题之三

　　One side of a triangle has length 8 and a second side has length 5. Which of the following could be the area of the triangle?

　　I 24

　　II 20

　　III 5

　　A. I only

　　B. II only

　　C. III only

　　D. II and III only

　　E. I, II and III

　　Correct Answer: D

　　解析:

　　The maximum area of the triangle will come when the given sides are placed at right angles. If we take 8 as the base and 5 as the height the area = ? x 8 x 5 = 20. We canalterthe angle between the sides to make it less or more than 90, but this will only reduce the area. (Draw it out for yourself). Hence the area can be anything less than or equal to 20.

　　SAT数学练习题之四

　　A certain animal in the zoo has consumed 39 pounds of food in six days. If itcontinues to eat at the same rate, in how many more days will its total consumption be 91 pounds?

　　A. 12

　　B. 11

　　C. 10

　　D. 9

　　E. 8

　　Correct Answer: E

　　解析:

　　Food consumed per day = 39/6. In the remaining days it will consume 91 – 39 pounds = 52 pounds. Now divide the food by the daily consumption to find the number of days. 52 / (39/6) = 52 x (6 / 39) = 8

　　SAT数学练习题之五

　　A perfect cube is an integer whose cube root is an integer. For example, 27, 64 and 125 are perfect cubes. If p and q are perfect cubes, which of the following will not necessarily be a perfect cube?

　　A. 8p

　　B. pq

　　C. pq + 27

　　D. -p

　　E. (p – q)6

　　Correct Answer: C

　　解析:

　　A perfect cube will have primefactors that are in groups of 3; for example 125 has the primefactors 5 x 5 x 5 , and 64 x 125 will also be a cube because its factors will be 4 x 4 x 4 x 5 x 5 x 5. Consider the answer choices in turn. 8 is the cube of 2, and p is a cube, and so the product will also be a cube. pq will also be a cube as shown above.pq is a cube and so is 27, but their sum need not be a cube. Consider the case where p =1 and q = 8, the sum of pq and 27 will be 35 which has factors 5 x 7 and is not a cube. -p will be a cube. Since the difference between p and q is raised to the power of 6, this expression will be a cube (with cube root = difference squared).

　　以上就是小编为大家总结的SAT数学做题技巧和真题训练，希望考生们在备考中重视起来，除此之外，大家也要重视真题训练，打好备考技巧的基础。如果想要获取更多怎么参加SAT、怎样准备SAT等更多信息，大家可以线上咨询我们或继续关注网站更新的文章！