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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| 16 ÷ 8 = | 8 ÷ 8 = | 90 - 89 = | 73 - 38 = |
| 3 × 7 = | 57 + 43 = | 8 × 4 = | 72 ÷ 9 = |
| 8 × 2 = | 24 ÷ 8 = | 9 × 9 = | 30 ÷ 5 = |
| 24 - 18 = | 24 ÷ 4 = | 4 × 4 = | 18 ÷ 2 = |
| 18 ÷ 3 = | 24 ÷ 8 = | 35 ÷ 7 = | 40 - 31 = |
| 6 × 4 = | 36 + 26 = | 9 × 3 = | 7 × 1 = |
| 100 - 99 = | 8 × 6 = | 1 × 5 = | 5 × 5 = |
| 54 ÷ 9 = | 3 × 6 = | 21 ÷ 7 = | 18 ÷ 6 = |
| 7 × 9 = | 58 + 39 = | 4 ÷ 4 = | 45 + 36 = |
| 28 + 22 = | 49 ÷ 7 = | 5 × 2 = | 49 ÷ 7 = |
| 8 × 5 = | 8 ÷ 4 = | 56 ÷ 7 = | 52 - 49 = |
| 6 × 8 = | 1 × 9 = | 2 × 6 = | 5 ÷ 5 = |
| 1 × 6 = | 39 + 32 = |
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