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