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-36×(1/4-1/9-1/12)÷(-2) 等于多少?
人气:194 ℃ 时间:2020-03-26 09:15:29
解答
-36×(1/4-1/9-1/12)÷(-2)
=﹣36×﹙﹤9﹣4﹣3﹥/36﹚×﹙﹣1/2﹚
=﹣36×﹙﹣1/2﹚×﹙2/36﹚
=36×﹙1/2﹚×2×1/36
=1
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