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57乘百分之75加44乘0.75减4分之3简便算法,
人气:148 ℃ 时间:2019-12-13 12:42:28
解答
57乘百分之75加44乘0.75减4分之3
=57*0.75+44*0.75-0.75
=(57+44-1)*0.75
=100*0.75
=75
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