8.16乘1.53-0.053乘81.6用脱式减算
问题描述:
8.16乘1.53-0.053乘81.6用脱式减算
答
8.16×1.53-0.053×81.6
=8.16×1.53-0.53×8.16
=8.16×(1.53-0.53)
=8.16