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

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