(0.25×1.25)×3.2用简便方法计算
问题描述：
(0.25×1.25)×3.2用简便方法计算
答
0.25×4×1.25×0.8
=1,
(0.25×1.25)×3.2用简便方法计算
0.25×4×1.25×0.8
=1,