题目内容
直接写得数
| 3.2-0.7= | 0.45+1.08= | 1-0.09= | 0.72÷0.9= |
| 5X+2X= | 8.5a-2.7a= | 0.6×0.4×2.5= | 31.4÷0.314= |
| 3.2-0.7=2.5, | 0.45+1.08=1.53, | 1-0.09=0.91, | 0.72÷0.9=0.8, |
| 5X+2X=7X, | 8.5a-2.7a=5.8a, | 0.6×0.4×2.5=0.6, | 31.4÷0.314=100. |
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