-0.1,1/2,-9,2,+1,-5/2,-2,3.5.这些数中整数有?分数有?正数有?负数有?

问题描述:

-0.1,1/2,-9,2,+1,-5/2,-2,3.5.这些数中整数有?分数有?正数有?负数有?

整数:-9 2 +1 -2分数:-0.1 1/2-5/23.5正数:1/2 2 +1 3.5负数:-0.1-9 -5/2-2