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