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