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脱式计算下面各题0.125×1.6,20×0.65×0.05
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脱式计算下面各题
0.125×1.6,
=0.125×8×0.2
=1×0.2
=0.2
20×0.65×0.05
=20×0.05×0.65
=1×0.65
=0.65
0.125×1.6,
=0.125×8×0.2
=1×0.2
=0.2
20×0.65×0.05
=20×0.05×0.65
=1×0.65
=0.65
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