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58.36乘0.5加18.29简便方法计算
人气:410 ℃ 时间:2020-03-26 17:33:34
解答
58.36×0.5+18.29
=58.36×2分之1+18.29
=29.18+18.29
=29+18+0.18+0.29
=47.47
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