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3.2×1.25×0.25.
分析:3.2×1.25×0.25.把3.2拆分为0.8×4,再运用乘法交换律和结合律进行简算.
解答:解:3.2×1.25×0.25,
=(0.8×1.25)×(4×0.25),
=1×1,
=1.
点评:此题考查的目的是使学生理解和掌握乘法的运算定律,并且能够灵活运用运算定律对小数四则混合运算进行简便计算.
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