0.25✘4.8怎么简便?
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2020-02-24
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0.25×4.8简便计算?
1,解:原式=0.25×(4×1.2)
=0.25×4×1.2
=1×1.2
=1.2
2,0.25×4.8
=0.5×0.5×(8×0.6)
=0.5×8×(0.5×0.6)
=4×0.3
=1.2
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0.25×4.8简便计算?
1,解:原式=0.25×(4×1.2)
=0.25×4×1.2
=1×1.2
=1.2
2,0.25×4.8
=0.5×0.5×(8×0.6)
=0.5×8×(0.5×0.6)
=4×0.3
=1.2
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