86.4*0.24+43.2*0.52

红色头发黄色心2022-10-04 11:39:541条回答

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思念有痕 共回答了15个问题 | 采纳率93.3%
86.4*0.24+43.2*0.52
=43.2*2*0.24+43.2*0.52
=43.2*(0.48+0.52)
=43.2
1年前

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