跟着消防员爸爸学习C++编程与算法（请备注算法学习）
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| 5.0 + 8.2 = | 8.3 - 7.3 = | 9.5 - 3.6 = | 6.6 + 4.5 = |
| 9.5 + 6.1 = | 9.6 + 7.5 = | 8.3 + 1.9 = | 8.3 - 1.9 = |
| 4.7 - 1.0 = | 9.6 - 7.5 = | 6.9 + 3.6 = | 6.9 - 3.6 = |
| 2.4 + 2.1 = | 9.4 + 4.0 = | 9.5 + 3.6 = | 3.4 - 0.2 = |
| 5.2 - 4.4 = | 6.8 - 6.0 = | 3.7 - 3.2 = | 9.8 + 6.3 = |
| 2.7 - 2.5 = | 3.7 - 0.6 = | 6.8 - 3.9 = | 3.6 + 0.4 = |
| 7.2 + 0.7 = | 9.7 - 7.0 = | 9.7 + 7.0 = | 5.7 + 2.6 = |
| 7.2 - 0.7 = | 8.4 + 5.0 = | 8.3 + 7.3 = | 9.8 - 6.3 = |
| 4.2 + 7.1 = | 8.4 - 5.0 = | 2.7 + 2.5 = | 9.5 - 6.1 = |
| 6.0 + 7.4 = | 6.9 - 5.4 = | 9.4 - 4.0 = | 4.5 + 5.5 = |
| 9.6 + 0.9 = | 9.6 - 0.9 = | 2.4 - 2.1 = | 5.7 - 2.6 = |
| 6.7 + 9.4 = | 6.6 - 4.5 = | 4.7 + 1.0 = | 3.8 + 8.0 = |
| 3.6 - 0.4 = | 1.2 + 3.6 = |
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