4.7×15.2+47×0.26-78乘0.47简便计算
问题描述:
4.7×15.2+47×0.26-78乘0.47简便计算
答
解
=4.7×15.2+4.7×2.6-7.8×4.7
=4.7×(15.2+2.6-7.8)
=4.7×1
=4.7