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数学
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0.125乘0.25乘3.2『巧算』
急·!
人气:338 ℃ 时间:2020-02-03 12:13:33
解答
0.25×3.2×0.125
=0.25×4×0.8×0.125
=﹙0.25×4﹚×﹙0.8×0.125﹚
=1×0.1
=0.1
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