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数学
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计算下面的题,能简算的要简算 2.4×1.25 19-5/6-6/7-1/6
人气:437 ℃ 时间:2019-10-19 16:35:17
解答
2.4×1.25
= 2.4×1.25×4÷4
= 2.4×5÷4
= 12÷4
= 3
19-5/6-6/7-1/6
= 19 - 5/6 - 1/6 - 6/7
= 19 - 1 - 6/7
= 18 - 6/7
= 17又1/7
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