(要多一点哦!)

问题描述:

(要多一点哦!)

3.4-1.4=7.82-7.2= 2.19+9.1= 10.1-0.89=0.68+0.42=8.1-5.1= 0.728-0.24= 0.8+0.18= 0.89-0.25= 1-0....