| 1. | 28 - 7 = |
44
|
21
|
38
|
40
|
| 2. | 20 - 4 = |
15
|
16
|
20
|
13
|
| 3. | 31 - 5 = |
26
|
31
|
25
|
42
|
| 4. | 27 - 20 = |
9
|
7
|
10
|
3
|
| 5. | 35 - 3 = |
25
|
28
|
32
|
23
|
| 6. | 36 - 9 = |
25
|
34
|
27
|
40
|
| 7. | 22 - 9 = |
11
|
15
|
13
|
10
|
| 8. | 29 - 1 = |
50
|
29
|
42
|
28
|
| 9. | 2 - 1 = |
8
|
1
|
4
|
9
|
| 10. | 19 - 15 = |
8
|
3
|
7
|
4
|
| 11. | 24 - 22 = |
5
|
7
|
8
|
2
|
| 12. | 31 - 3 = |
45
|
31
|
28
|
24
|
| 1. | 28 - 7 = |
44
|
21
|
38
|
40
|
| 2. | 20 - 4 = |
15
|
16
|
20
|
13
|
| 3. | 31 - 5 = |
26
|
31
|
25
|
42
|
| 4. | 27 - 20 = |
9
|
7
|
10
|
3
|
| 5. | 35 - 3 = |
25
|
28
|
32
|
23
|
| 6. | 36 - 9 = |
25
|
34
|
27
|
40
|
| 7. | 22 - 9 = |
11
|
15
|
13
|
10
|
| 8. | 29 - 1 = |
50
|
29
|
42
|
28
|
| 9. | 2 - 1 = |
8
|
1
|
4
|
9
|
| 10. | 19 - 15 = |
8
|
3
|
7
|
4
|
| 11. | 24 - 22 = |
5
|
7
|
8
|
2
|
| 12. | 31 - 3 = |
45
|
31
|
28
|
24
|