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6.25*3.7+0.625*62+62.5*0.01的简便算法怎么算?
人气:198 ℃ 时间:2019-11-09 09:14:23
解答
6.25*3.7+0.625*62+62.5*0.01
=6.25*3.7+6.25*6.2+6.25*0.1
=6.25*(3.7+6.2+0.1)
=6.25*10
=62.5
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