| Question | Answer |
| 11 - __ = 2 | |
| __ - 5 = 1 | |
| __ - 1 = 1 | |
| __ - 2 = 2 | |
| 16 - __ = 15 | |
| __ - 2 = 7 | |
| 13 - __ = 8 | |
| 12 - __ = 5 | |
| __ - 7 = 3 | |
| __ - 3 = 2 | |
| 14 - __ = 9 | |
| __ - 3 = 3 | |
| 14 - __ = 6 | |
| __ - 3 = 6 | |
| __ - 1 = 2 | |
| __ - 0 = 12 | |
| 18 - __ = 17 | |
| | Question | Answer |
| 16 - __ = 13 | |
| __ - 10 = 4 | |
| __ - 1 = 4 | |
| 9 - __ = 9 | |
| 17 - __ = 9 | |
| 17 - __ = 12 | |
| __ - 2 = 3 | |
| __ - 1 = 10 | |
| __ - 4 = 6 | |
| __ - 1 = 6 | |
| __ - 10 = 9 | |
| __ - 8 = 8 | |
| 12 - __ = 8 | |
| __ - 12 = 1 | |
| 19 - __ = 5 | |
| 7 - __ = 4 | |
| 7 - __ = 2 | |
| | Question | Answer |
| __ - 6 = 6 | |
| 18 - __ = 4 | |
| __ -1 = 16 | |
| 0 - __ = 0 | |
| __ - 13 = 4 | |
| __ - 3 = 0 | |
| 11 - __ = 1 | |
| 8 - __ = 6 | |
| __ - 5 = 5 | |
| 5 - __ = 0 | |
| 15 - __ = 7 | |
| 18 - __ = 9 | |
| 15 - __ = 14 | |
| 18 - __ = 7 | |
| __ - 9 = 4 | |
| 10 - __ = 8 | |
|