SAT考试前必做SAT数学练习题

　　现在有很多的人都在备考SAT考试,其中SAT数学部分对于中国考生来说并不难，但大家在平时备考的时候还是要多做练习，今天小编就给大家带来了SAT数学练习题，一起来看看吧。

　　In the following correctly worked addition sum, A,B,C and D represent different digits, and all the digits in the sum are different. What is the sum of A,B,C and D?

　　A. 23

　　B. 36

　　C. 24

　　D. 22

　　E. 31

　　Correct Answer: D

　　解析:

　　First you must realize that the sum of two 2-digit numbers cannot be more that 198 (99 + 99). Therefore in the given problem D must be 1. Now use trial and error to satisfy the sum 5A + BC = 143. A + C must give 3 in the units place, but neither can be 1 since all the digits have to be different. Therefore A + C = 13. With one to carry over into the tens column, 1 + 5 + B = 14, and B = 8. A + C + B + D = 13 + 8 + 1 = 22

　　以上就是小编今天带来的全部内容，希望大家在平时可以多多进行SAT数学练习，想了解更多关于SAT数学知识点,SAT的数学难题的内容，可以关注微信公众号kewo11。