| 1. | 9 - 9 = |
4
|
8
|
1
|
0
|
| 2. | 11 - 7 = |
2
|
8
|
3
|
4
|
| 3. | 19 - 16 = |
8
|
9
|
6
|
3
|
| 4. | 26 - 5 = |
29
|
49
|
37
|
21
|
| 5. | 21 - 2 = |
15
|
19
|
14
|
20
|
| 6. | 10 - 5 = |
1
|
8
|
5
|
2
|
| 7. | 27 - 3 = |
37
|
24
|
29
|
35
|
| 8. | 21 - 19 = |
2
|
9
|
5
|
4
|
| 9. | 28 - 2 = |
31
|
47
|
26
|
30
|
| 10. | 17 - 11 = |
6
|
8
|
3
|
4
|
| 11. | 21 - 20 = |
5
|
2
|
1
|
8
|
| 12. | 21 - 2 = |
19
|
17
|
13
|
20
|
| 1. | 9 - 9 = |
4
|
8
|
1
|
0
|
| 2. | 11 - 7 = |
2
|
8
|
3
|
4
|
| 3. | 19 - 16 = |
8
|
9
|
6
|
3
|
| 4. | 26 - 5 = |
29
|
49
|
37
|
21
|
| 5. | 21 - 2 = |
15
|
19
|
14
|
20
|
| 6. | 10 - 5 = |
1
|
8
|
5
|
2
|
| 7. | 27 - 3 = |
37
|
24
|
29
|
35
|
| 8. | 21 - 19 = |
2
|
9
|
5
|
4
|
| 9. | 28 - 2 = |
31
|
47
|
26
|
30
|
| 10. | 17 - 11 = |
6
|
8
|
3
|
4
|
| 11. | 21 - 20 = |
5
|
2
|
1
|
8
|
| 12. | 21 - 2 = |
19
|
17
|
13
|
20
|