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