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0.625*31+62.5*0.26+6.25*4.3怎样简算?列式.
人气:318 ℃ 时间:2019-11-18 02:51:55
解答
=0.625*31+0.625*26+0.625*43
=0.625*(31+26+43)
=0.625*100
=62.5
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