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数学
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1.625*1992+1992*0.375-1992怎么用简便方法计算
人气：404 ℃ 时间：2019-08-18 21:10:27
解答
1.625*1992+1992*0.375-1992
=1992*(1.625+0.375-1)
=1992*1
=1992
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