| 1. | 15 - 6 = |
10
|
5
|
1
|
9
|
| 2. | 13 - 11 = |
5
|
2
|
3
|
1
|
| 3. | 11 - 8 = |
5
|
1
|
3
|
4
|
| 4. | 17 - 11 = |
7
|
3
|
6
|
4
|
| 5. | 7 - 4 = |
5
|
6
|
4
|
3
|
| 6. | 14 - 14 = |
3
|
7
|
0
|
1
|
| 7. | 18 - 17 = |
4
|
10
|
5
|
1
|
| 8. | 16 - 16 = |
9
|
7
|
0
|
2
|
| 9. | 12 - 9 = |
9
|
3
|
5
|
2
|
| 10. | 5 - 4 = |
1
|
4
|
9
|
10
|
| 11. | 10 - 4 = |
4
|
7
|
6
|
1
|
| 12. | 20 - 19 = |
1
|
8
|
2
|
6
|
| 1. | 15 - 6 = |
10
|
5
|
1
|
9
|
| 2. | 13 - 11 = |
5
|
2
|
3
|
1
|
| 3. | 11 - 8 = |
5
|
1
|
3
|
4
|
| 4. | 17 - 11 = |
7
|
3
|
6
|
4
|
| 5. | 7 - 4 = |
5
|
6
|
4
|
3
|
| 6. | 14 - 14 = |
3
|
7
|
0
|
1
|
| 7. | 18 - 17 = |
4
|
10
|
5
|
1
|
| 8. | 16 - 16 = |
9
|
7
|
0
|
2
|
| 9. | 12 - 9 = |
9
|
3
|
5
|
2
|
| 10. | 5 - 4 = |
1
|
4
|
9
|
10
|
| 11. | 10 - 4 = |
4
|
7
|
6
|
1
|
| 12. | 20 - 19 = |
1
|
8
|
2
|
6
|