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简便算法 5.6×0.375+0.375×5.4-37.5%
人气:153 ℃ 时间:2020-04-04 15:26:20
解答
5.6×0.375+0.375×5.4-37.5%
=(5.6+5.4-1)×37.5%
=10×37.5%
=3.75
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