简便计算2.5x1.25÷1/32

问题描述:

简便计算2.5x1.25÷1/32

2.5x1.25÷1/32
=2.5x1.25x32
=2.5x1.25x4x8
=(2.5x4)x(1.25x8)
=10x10
=100