4.35×65+0.35×43.5简便计算?
3个回答
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4.35×65+0.35×43.5
=4.35×(65+3.5)
=4.35×68.5
=4.35×70-4.35×1.5
=43.5×7-4.35×1-4.35×0.5
=304.5-4.35-2.175
=300.15-2.175
=300.15-3+0.825
=297.975
=4.35×(65+3.5)
=4.35×68.5
=4.35×70-4.35×1.5
=43.5×7-4.35×1-4.35×0.5
=304.5-4.35-2.175
=300.15-2.175
=300.15-3+0.825
=297.975
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0.35×43.5=3.5×4.35,现在都有4.35,65+3.5=68.5,4.35×68.5=297.975
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错搏盯庆则改题
4.35×6.5+0.35×43.5
=43.5×0.65+0.35×43.5
=43.5*(基握0.65+0.35)
=43.5*1
=43.5
4.35×6.5+0.35×43.5
=43.5×0.65+0.35×43.5
=43.5*(基握0.65+0.35)
=43.5*1
=43.5
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