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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| 12 ÷ 6 = | 8 ÷ 2 = | 7 × 9 = | 4 × 1 = |
| 63 ÷ 7 = | 3 × 6 = | 1 × 1 = | 9 × 1 = |
| 4 × 9 = | 36 ÷ 4 = | 24 ÷ 6 = | 68 + 18 = |
| 81 ÷ 9 = | 6 × 4 = | 45 + 39 = | 28 ÷ 4 = |
| 18 ÷ 9 = | 18 ÷ 3 = | 40 ÷ 5 = | 30 - 22 = |
| 83 - 79 = | 72 ÷ 8 = | 5 × 9 = | 70 - 55 = |
| 48 + 48 = | 18 + 14 = | 8 × 1 = | 2 ÷ 2 = |
| 2 × 3 = | 9 ÷ 9 = | 71 - 14 = | 3 × 2 = |
| 6 ÷ 2 = | 1 × 4 = | 72 ÷ 8 = | 7 ÷ 7 = |
| 1 × 6 = | 48 ÷ 8 = | 16 ÷ 8 = | 27 ÷ 3 = |
| 36 - 17 = | 8 × 2 = | 3 × 4 = | 7 × 7 = |
| 65 + 16 = | 85 - 26 = | 8 × 8 = | 1 × 8 = |
| 3 × 1 = | 49 + 28 = |
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