问题
解答题
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答案
| 2a+a=3a | x-0.4x=0.6x | 1.5b+b=2.5b | 5d-2d=3d | 4x×2x=8x2 |
| 3.6÷0.4=9 | 0.25×4=1 | 7.8÷0.06=130 | 66÷0.33=200 | 12.8÷0.04=320 |
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| 2a+a=3a | x-0.4x=0.6x | 1.5b+b=2.5b | 5d-2d=3d | 4x×2x=8x2 |
| 3.6÷0.4=9 | 0.25×4=1 | 7.8÷0.06=130 | 66÷0.33=200 | 12.8÷0.04=320 |