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