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数学
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1-(8.64/8.64-182.4/91.2*0.5)的简便算法
人气:289 ℃ 时间:2020-03-20 03:21:21
解答
原式=1-(8.64÷8.64-91.2×2÷91.2×0.5)
=1-(1-91.2÷91.2×2×0.5)
=1-(1-1×2×0.5)
=1-0
=1没有简便算法吗?就是把182.4拆分成91.2×2
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