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6.7+4.95+3.3283.75-(42.73-13.25)17.56-3.87-6.135.5+9.18+0.82+3.523.5+0.9+11.515.49-3.3-5.49.
题目详情
6.7+4.95+3.3 | 283.75-(42.73-13.25) |
17.56-3.87-6.13 | 5.5+9.18+0.82+3.5 |
23.5+0.9+11.5 | 15.49-3.3-5.49. |
▼优质解答
答案和解析
(1)6.7+4.95+3.3 =(6.7+3.3)+4.95 =10+4.95=14.95;(2)283.75-(42.73-13.25)=283.75-42.73+13.25=(283.75+13.25)-42.73=297-42.73=254.27;(3)17.56-3.87-6.13 ...
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