笔算下面各题(12分)(1)1.608+2.84= (2)6.07-3.869=(3)1.5-0.306= (4)76.8+26.82=(5)2.983+0.52+1.25= (6)13.79-9.653-2.48=
x-x=18.7
15.8-(6+÷12.5%)
10-÷×1
325×0.36+6.75×36
5.6×0.375+×5.4-0.375×0.9