1.25×6.4的简便算法.
问题描述:
1.25×6.4的简便算法.
答
1.25×(8×0.8)
=1.25×8×0.8
=10×0.8
=8
1.25×6.4的简便算法.
1.25×(8×0.8)
=1.25×8×0.8
=10×0.8
=8