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数学
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4.87+18/13+5.3等于多少(简便计算)
人气:416 ℃ 时间:2020-02-01 09:01:31
解答
4.87+18/13+5.3
=4.7+0.17+5/13+1+5.3
=11+17/100+5/13
=11+17*13/100+500/1300
=11+721/1300
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