下面无忧小编为大家总结了gre猴哥数学难题。gre数学考试中也会出现一些难题，对gre数学考试最有效的方法就是多练习，把数学基础知识记牢，这样才能在考试中对答如流。

　　21.[x] represents the greatest integer less than or equal to x and [x] represents the least integer greater than or equal to x.

　　Column A:{[1.4]+[1.4]}/2

　　Column B: 1.4

　　22. If the actual temperature is 13 degrees Fahrenheit and the wind speed is 14 miles per hour, then the apparent temperature could be

　　24. From 1982 to 1987 the price of a Brand x candy bar increased by approximately what percent?

　　26. How many times between 1971 and 1991 did the price of a Brand x candy bar increase while the weight decreased?