1.45×65+0.55×6.5 用简便计算
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1.45×65+0.55×6.5 用简便计算
1.45×65+0.55×6.5
=1.45*65+0.055*65
=(1.45+0.055)*65
=1.505*65
=97.825
=1.45*65+0.055*65
=(1.45+0.055)*65
=1.505*65
=97.825