0.77×4.5+0.035×77的简便算法?
展开全部
=0.77×4.5+3.5×0.77
=(4.5+3.5)×0.77
=8×0.77
=6.16
=(4.5+3.5)×0.77
=8×0.77
=6.16
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展开全部
0.77×4.5+0.035×77
=0.77×4.5+3.5×0.77
=0.77×(4.5+3.5)
=0.77×8
=6.16
=0.77×4.5+3.5×0.77
=0.77×(4.5+3.5)
=0.77×8
=6.16
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