Find the difference
| 7 - 5 = _______ | 9 - 8 = _______ | 9 - 1 = _______ |
| 9 - 2 = _______ | 10 - 8= _______ | 7 - 1 = _______ |
| 8 - 1 = _______ | 9 - 3 = _______ | 10 - 7 = _______ |
| 11- 7= _______ | 9 - 4 = _______ | 8 - 7 = _______ |
| 12 - 9 = _______ | 8 - 3 = _______ | 7 - 3 = _______ |
| 2 - 8 = _______ | 7 - 9 = _______ | 11 - 9 = _______ |
| 7 - 2 = _______ | 8 - 5 = _______ | 10 - 9= _______ |
| 9 - 9 = _______ | 7 - 4 = _______ | 8 - 4 = _______ |
| 11 - 8 = _______ | 7 - 7 = _______ | 9 - 5 = _______ |
| 12 - 7 = _______ | 9 - 6 = _______ | 8 - 8 = _______ |
| 9 - 7 = _______ | 7 - 6 = _______ | 8 - 2 = _______ |
| 8 - 8 = _______ | 9 - 8 = _______ | 7 - 8 = _______ |