简算4649.05÷0.7×1.6×0.4÷3.2×1.5 ..
5个回答
4649.05÷0.7×1.6×0.4÷3.2×1.5
= 46490.5÷7×0.2×1.5
= 6641.5×0.3
= 1992.45
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