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2.75*3.7+27.5*0.37 简便计算
2.75*3.7+27.5*0.37 (简便计算,*是乘号!)
人气:144 ℃ 时间:2019-12-01 14:09:25
解答
2.75*3.7+27.5*0.37
=2.75*3.7+2.75*3.7
=2.75(3.7+3.7)
=2.72*7.4
=20.35
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