简便运算37.2×48+372×5.1+37.2
问题描述:
简便运算37.2×48+372×5.1+37.2
答
37.2×48+372×5.1+37.2
=37.2×48+37.2×10x5.1+37.2
=37.2x(48+51+1)
=37.2x100
=3720