| 8 - 3 = _____ | 2 - 1 = _____ |
| 1 - 1 = _____ | 9 - 4 = _____ |
| 9 - 0 = _____ | 7 - 2 = _____ |
| 4 - 4 = _____ | 3 - 1 = _____ |
| 2 - 2 = _____ | 4 - 4 = _____ |
| 6 - 5 = _____ | 3 - 3 = _____ |
| 7 - 6 = _____ | 6 - 5 = _____ |
| 4 - 3 = _____ | 4 - 1 = _____ |
| 4 - 1 = _____ | 10 - 8 = _____ |
| 6 - 3 = _____ | 9 - 6 = _____ |