Correction :
| 32 - 23 = 9 | 42 - 23 = 19 |
| 36 : 4 = 9 | 24 + 17 = 41 |
| 17 + 10 = 27 | 26 - 4 = 22 |
| 27 - 13 = 14 | 29 - 7 = 22 |
| 43 - 24 = 19 | 22 - 4 = 18 |
| 48 - 24 = 24 | 5 × 7 = 35 |
| 11 × 5 = 55 | 42 - 20 = 22 |
| 10 + 3 = 13 | 17 + 10 = 27 |
| 9 + 0 = 9 | 16 - 14 = 2 |
| 30 : 3 = 10 | 21 - 7 = 14 |