| 1. | 30 - 9 = |
44
|
50
|
21
|
32
|
| 2. | 33 - 31 = |
10
|
7
|
8
|
2
|
| 3. | 49 - 48 = |
1
|
5
|
4
|
7
|
| 4. | 34 - 12 = |
38
|
21
|
22
|
31
|
| 5. | 81 - 75 = |
1
|
4
|
7
|
6
|
| 6. | 91 - 39 = |
52
|
93
|
76
|
50
|
| 7. | 94 - 90 = |
10
|
2
|
9
|
4
|
| 8. | 9 - 1 = |
5
|
8
|
1
|
10
|
| 9. | 51 - 17 = |
21
|
34
|
22
|
29
|
| 10. | 87 - 60 = |
42
|
44
|
23
|
27
|
| 11. | 43 - 31 = |
12
|
11
|
19
|
16
|
| 12. | 9 - 6 = |
6
|
3
|
8
|
1
|
| 1. | 30 - 9 = |
44
|
50
|
21
|
32
|
| 2. | 33 - 31 = |
10
|
7
|
8
|
2
|
| 3. | 49 - 48 = |
1
|
5
|
4
|
7
|
| 4. | 34 - 12 = |
38
|
21
|
22
|
31
|
| 5. | 81 - 75 = |
1
|
4
|
7
|
6
|
| 6. | 91 - 39 = |
52
|
93
|
76
|
50
|
| 7. | 94 - 90 = |
10
|
2
|
9
|
4
|
| 8. | 9 - 1 = |
5
|
8
|
1
|
10
|
| 9. | 51 - 17 = |
21
|
34
|
22
|
29
|
| 10. | 87 - 60 = |
42
|
44
|
23
|
27
|
| 11. | 43 - 31 = |
12
|
11
|
19
|
16
|
| 12. | 9 - 6 = |
6
|
3
|
8
|
1
|