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3.6*0.81+0.36*1.9简便计算
人气:388 ℃ 时间:2020-01-11 08:41:37
解答
3.6*0.81+0.36*1.9
=3.6*0.81+3.6*0.19
=3.6*(0.81+0.19)
=3.6*1
=3.6
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