0.25x1.25x3.2怎么简便算

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0.25x1.25x3.2怎么简便算0.25x1.25x3.2怎么简便算0.25x1.25x3.2怎么简便算0.25x1.25x3.2=0.25x4x1.25x0.8=1x1=10.25x1.25x3

0.25x1.25x3.2怎么简便算
0.25x1.25x3.2怎么简便算

0.25x1.25x3.2怎么简便算
0.25x1.25x3.2
=0.25x4x1.25x0.8
=1x1
=1

0.25x1.25x3.2
=0.25x4x8x1.25
=1x10
=10

0.25×1.25×3.2
=0.25×1.25×4×0.8
=[0.25×4]×[1.25×0.8]
=1×1
=1

把3.2分成0.8和4,先用0.25乘4,再算剩下的。聪明的你会的

0.25×1.25×3.2=﹙0.25×4﹚×﹙1.25×0.8﹚=1×1=1.