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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| 14 ÷ 7 = | 6 × 4 = | 55 + 38 = | 14 ÷ 7 = |
| 12 ÷ 2 = | 3 × 7 = | 15 ÷ 3 = | 31 + 29 = |
| 7 × 6 = | 24 ÷ 8 = | 8 × 7 = | 9 × 6 = |
| 71 - 35 = | 81 - 63 = | 4 × 1 = | 16 ÷ 2 = |
| 67 + 25 = | 6 × 5 = | 7 × 2 = | 7 × 1 = |
| 16 ÷ 4 = | 2 ÷ 2 = | 5 × 9 = | 9 ÷ 9 = |
| 48 ÷ 6 = | 9 × 7 = | 32 - 28 = | 54 + 46 = |
| 2 × 5 = | 34 - 15 = | 12 ÷ 3 = | 16 ÷ 4 = |
| 8 × 1 = | 2 × 2 = | 24 ÷ 8 = | 28 ÷ 7 = |
| 3 ÷ 3 = | 8 × 4 = | 24 ÷ 6 = | 7 × 4 = |
| 12 ÷ 2 = | 26 + 18 = | 1 × 2 = | 90 - 74 = |
| 4 × 2 = | 82 - 34 = | 4 ÷ 4 = | 59 + 41 = |
| 56 ÷ 7 = | 5 × 5 = |
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