6.3x7.2x1.4+7.2x2.3怎样用简便方法计算
问题描述:
6.3x7.2x1.4+7.2x2.3怎样用简便方法计算
答
7.2*(6.3*1.4+2.3)=7.2*(8.82+2.3)=7.2*11.12=80.064
6.3x7.2x1.4+7.2x2.3怎样用简便方法计算
7.2*(6.3*1.4+2.3)=7.2*(8.82+2.3)=7.2*11.12=80.064