| 1. | 11 - 9 = |
10
|
2
|
9
|
8
|
| 2. | 15 - 13 = |
5
|
7
|
3
|
2
|
| 3. | 11 - 9 = |
2
|
7
|
6
|
5
|
| 4. | 11 - 4 = |
8
|
2
|
9
|
7
|
| 5. | 15 - 9 = |
6
|
7
|
3
|
2
|
| 6. | 14 - 9 = |
10
|
9
|
5
|
1
|
| 7. | 13 - 1 = |
15
|
19
|
16
|
12
|
| 8. | 15 - 8 = |
10
|
9
|
5
|
7
|
| 9. | 14 - 5 = |
5
|
7
|
10
|
9
|
| 10. | 13 - 1 = |
20
|
12
|
14
|
16
|
| 11. | 10 - 7 = |
7
|
8
|
3
|
4
|
| 12. | 8 - 3 = |
10
|
5
|
7
|
3
|
| 1. | 11 - 9 = |
10
|
2
|
9
|
8
|
| 2. | 15 - 13 = |
5
|
7
|
3
|
2
|
| 3. | 11 - 9 = |
2
|
7
|
6
|
5
|
| 4. | 11 - 4 = |
8
|
2
|
9
|
7
|
| 5. | 15 - 9 = |
6
|
7
|
3
|
2
|
| 6. | 14 - 9 = |
10
|
9
|
5
|
1
|
| 7. | 13 - 1 = |
15
|
19
|
16
|
12
|
| 8. | 15 - 8 = |
10
|
9
|
5
|
7
|
| 9. | 14 - 5 = |
5
|
7
|
10
|
9
|
| 10. | 13 - 1 = |
20
|
12
|
14
|
16
|
| 11. | 10 - 7 = |
7
|
8
|
3
|
4
|
| 12. | 8 - 3 = |
10
|
5
|
7
|
3
|