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0.125*78+12.5%*23-1/8=?(用简便方法计算)
人气:233 ℃ 时间:2019-10-11 19:59:46
解答
=0.125*78+0.125*23-0.125
=0.125*(78+23-1)
=0.125*100
=12.5
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