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