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0.25×0.8÷0.125×0.4简便算法
3个回答
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0.25×0.8÷0.125×0.4
=0.25×0.8×1/0.125×0.4
=(0.25×0.4)×(0.8×1/0.125)
=0.1×(0.8×1/0.125)
=0.08×1/0.125
=0.08×8
=0.64
=0.25×0.8×1/0.125×0.4
=(0.25×0.4)×(0.8×1/0.125)
=0.1×(0.8×1/0.125)
=0.08×1/0.125
=0.08×8
=0.64
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