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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| 515 + 280 ÷ 8 = | 483 - 18 × 9 = | 9 × 6 - 17 = | 93 × 6 + 705 = |
| 441 ÷ 9 - 4 = | 626 + 67 × 7 = | 255 ÷ 5 × 2 = | 43 × 4 ÷ 2 = |
| 275 - 7 × 6 = | 411 - 76 × 5 = | 486 ÷ 3 - 117 = | 90 × 7 - 203 = |
| 384 ÷ 8 × 7 = | 241 + 405 ÷ 9 = | 18 × 9 + 92 = | 976 + 432 ÷ 9 = |
| 290 - 904 ÷ 8 = | 50 × 7 ÷ 5 = | 408 ÷ 6 × 5 = | 970 - 94 × 7 = |
| 12 × 9 ÷ 4 = | 17 × 7 - 28 = | 394 - 22 × 9 = | 601 + 53 × 4 = |
| 547 + 657 ÷ 3 = | 88 × 9 ÷ 6 = | 135 + 801 ÷ 9 = | 84 × 6 ÷ 4 = |
| 621 ÷ 3 - 16 = | 70 × 4 - 39 = | 959 + 3 × 3 = | 117 ÷ 9 - 9 = |
| 88 × 5 + 263 = | 92 + 72 × 3 = | 521 - 700 ÷ 4 = | 722 + 306 ÷ 9 = |
| 636 - 609 ÷ 7 = | 226 + 54 × 8 = | 643 + 444 ÷ 6 = | 71 × 6 ÷ 6 = |
| 784 ÷ 7 × 4 = | 96 × 6 - 310 = | 996 - 96 ÷ 6 = | 435 ÷ 5 + 421 = |
| 624 ÷ 4 + 268 = | 5 × 7 - 13 = | 781 - 36 × 6 = | 95 × 8 - 243 = |
| 70 × 3 - 20 = | 748 + 74 × 2 = |
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