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7142.85除以3.7除以2.7乘以1.7乘以0.7等于多少?
人气：128 ℃　时间：2020-02-03 15:09:55
解答
7142.85÷3.7÷2.7×1.7×0.7
=1930.5÷2.7×1.7×0.7
=715×1.7×0.7
=1215.5×0.7
=850.85
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