73×64+27×65的简便算法

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73×64+27×65的简便算法73×64+27×65的简便算法73×64+27×65的简便算法73×64+27×65=73×64+27×(64+1)=73×64+27×64+27×1=64×(73+

73×64+27×65的简便算法
73×64+27×65的简便算法

73×64+27×65的简便算法
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

64*(73+27)+27
=6400+27=6427

73×64+27×65=73×64+27×(64+1)

=73*64+27*(64+1)
=73*64+27*64+27*1
=(73+27)*64+27
=100*64*27
=6427