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