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数学
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0.6÷0.12÷2.5 的简便算法
人气:440 ℃ 时间:2020-03-18 04:16:50
解答
0.6÷0.12÷2.5
=0.6÷(0.12x2.5)
=0.6÷(0.3x0.4x2.5)
=2
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