Correction :
| 11 + 14 = 25 | 3 + 20 = 23 |
| 11 + 21 = 32 | 24 - 22 = 2 |
| 2 + 20 = 22 | 14 + 3 = 17 |
| 35 - 22 = 13 | 17 - 12 = 5 |
| 9 × 2 = 18 | 6 × 9 = 54 |
| 30 - 8 = 22 | 17 + 15 = 32 |
| 7 × 9 = 63 | 19 - 2 = 17 |
| 19 - 0 = 19 | 22 - 4 = 18 |
| 6 + 6 = 12 | 20 - 1 = 19 |
| 18 + 24 = 42 | 19 - 9 = 10 |