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1.2÷(9.6÷2.4)×2.5的简便算法是?
人气:117 ℃ 时间:2020-04-14 06:32:14
解答
1.2÷(9.6÷2.4)×2.5
=1.2÷4X2.5
=0.3X2.5
=0.75
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