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8.26*0.25-4.13/2怎么简算
人气:398 ℃ 时间:2020-04-25 17:16:58
解答
8.26*0.25-4.13/2
=8.26*0.25-4.13*0.5
=8.26*0.25-4.13*2*0.25
=8.26*0.25-8.26*0.25
=0
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