1.25乘6.4乘0.25用简便计算
问题描述：
1.25乘6.4乘0.25用简便计算
答
=1.25×8×0.2×4×0.25
=10×0.2×1
=2
1.25乘6.4乘0.25用简便计算
=1.25×8×0.2×4×0.25
=10×0.2×1
=2