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