7×1.204+0.87×70+0.96×0.7简便计算
问题描述:
7×1.204+0.87×70+0.96×0.7简便计算
答
7×1.204+0.87×70+0.96×0.7
=7×(1.204+8.7+0.096)
=7×10
=70