
12.5×6.4×0.25×5如何简便?
2个回答
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12.5×6.4×0.25×5
=12.5×(6.4×5)×0.25
=12.5×32×0.25
=12.5×(8×4)×0.25
=(12.5×8)×(4×0.25)
=100×1
=100
=12.5×(6.4×5)×0.25
=12.5×32×0.25
=12.5×(8×4)×0.25
=(12.5×8)×(4×0.25)
=100×1
=100
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