DS. Is the integer n a multiple of 140?
1. N is multiple of 10.
2. N is mutual old of 14.
@May老师 这到底在数学基础课里 请问题目里说integer 那么integer 也可以有负数 所以 E的答案 这样理解可以吗。
If 500 is the mutiple of 100 that is closest to x and 400 is the multiple of 100 that is closest to y,which multiple of 100 is closest to x+y? (1)x小于500 (2)y小于400