1.25X0.25X3.2简算
问题描述:
1.25X0.25X3.2简算
答
=1.25X0.25X0.8X4
=1.25X0.8X(0.25X4)
=1X1
=1
答
1.25X0.25X3.2
=(1.25×0.8)×(0.25×4)
=1×1
=1