问3.8x2.7+38x0.73简便算法怎么算?

问题描述:

问3.8x2.7+38x0.73简便算法怎么算?
请教算法

3.8x2.7+38x0.73
=3.8x2.7+(3.8x10)x0.73
=3.8x2.7+3.8x(10x0.73)
=3.8x2.7+3.8x7.3
=3.8x(2.7+7.3)
=3.8x10
=38