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73×64+27×65的简便算法
人气:205 ℃ 时间:2020-01-14 13:56:50
解答
73×64+27×65
=73×64+27×(64+1)
=73×64+27×64+27×1
=64×(73+27)+27
=64×100+27
=6400+27
=6427
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