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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| 69 + 3 × 7 = | 5 × 7 + 58 = | 87 - 6 × 3 = | 64 - 9 × 7 = |
| 63 - 5 × 5 = | 51 + 5 × 6 = | 55 + 4 × 6 = | 42 - 3 × 6 = |
| 6 × 9 - 16 = | 87 - 6 × 6 = | 36 - 9 × 4 = | 53 + 4 × 9 = |
| 31 - 8 × 2 = | 94 - 4 × 4 = | 31 + 2 × 8 = | 43 - 6 × 7 = |
| 60 - 4 × 9 = | 60 - 5 × 7 = | 46 - 5 × 2 = | 3 × 8 - 20 = |
| 3 × 4 + 72 = | 82 - 4 × 9 = | 3 × 8 + 58 = | 6 × 4 + 74 = |
| 63 - 4 × 9 = | 37 + 6 × 4 = | 9 × 6 + 19 = | 47 - 5 × 3 = |
| 7 × 7 - 31 = | 48 + 5 × 8 = | 9 × 5 + 39 = | 27 + 4 × 6 = |
| 2 × 7 + 41 = | 25 + 8 × 2 = | 69 + 6 × 3 = | 37 + 2 × 7 = |
| 5 × 8 + 24 = | 67 - 7 × 9 = | 12 + 4 × 4 = | 74 + 5 × 4 = |
| 78 - 3 × 8 = | 35 + 6 × 5 = | 7 × 4 + 33 = | 9 × 9 + 11 = |
| 20 + 5 × 8 = | 9 × 2 + 16 = | 29 - 3 × 5 = | 3 × 4 + 20 = |
| 85 - 6 × 5 = | 98 - 5 × 7 = | 35 + 3 × 6 = | 5 × 5 - 19 = |
| 60 + 5 × 5 = | 21 + 8 × 9 = | 56 + 5 × 2 = | 2 × 8 + 24 = |
| 72 - 8 × 7 = | 9 × 3 - 23 = | 8 × 3 - 20 = | 3 × 5 - 12 = |
| 7 × 9 + 25 = | 76 - 7 × 7 = | 12 + 5 × 3 = | 9 × 6 - 11 = |
| 94 - 7 × 8 = | 3 × 7 - 15 = | 5 × 6 + 45 = | 3 × 9 - 17 = |
| 61 - 6 × 8 = | 3 × 6 + 30 = | 60 - 9 × 3 = | 46 - 5 × 4 = |
| 6 × 6 - 27 = | 49 - 8 × 5 = | 6 × 2 + 10 = | 38 + 9 × 2 = |
| 35 + 8 × 4 = | 9 × 4 - 12 = | 22 - 3 × 7 = | 85 - 9 × 5 = |
| 3 × 8 + 49 = | 4 × 3 - 11 = | 52 + 5 × 2 = | 65 - 2 × 8 = |
| 28 + 5 × 5 = | 53 + 5 × 2 = | 5 × 5 - 11 = | 19 + 2 × 5 = |
| 8 × 6 + 13 = | 5 × 7 - 22 = | 8 × 2 - 10 = | 2 × 7 - 10 = |
| 9 × 3 - 12 = | 57 - 6 × 2 = | 32 + 6 × 4 = | 6 × 7 + 29 = |
| 67 - 6 × 4 = | 44 + 2 × 6 = | 8 × 2 - 14 = | 3 × 6 - 15 = |
消防员爸爸