| 1. | 21 - 5 = |
19
|
12
|
16
|
15
|
| 2. | 17 - 1 = |
15
|
12
|
17
|
16
|
| 3. | 30 - 15 = |
14
|
15
|
11
|
12
|
| 4. | 23 - 11 = |
10
|
16
|
12
|
11
|
| 5. | 26 - 23 = |
3
|
5
|
4
|
9
|
| 6. | 9 - 2 = |
6
|
7
|
4
|
1
|
| 7. | 29 - 9 = |
11
|
12
|
20
|
10
|
| 8. | 28 - 20 = |
10
|
8
|
3
|
5
|
| 9. | 28 - 2 = |
34
|
26
|
37
|
29
|
| 10. | 16 - 3 = |
17
|
18
|
13
|
12
|
| 11. | 17 - 6 = |
11
|
16
|
18
|
10
|
| 12. | 5 - 2 = |
6
|
3
|
8
|
4
|
| 1. | 21 - 5 = |
19
|
12
|
16
|
15
|
| 2. | 17 - 1 = |
15
|
12
|
17
|
16
|
| 3. | 30 - 15 = |
14
|
15
|
11
|
12
|
| 4. | 23 - 11 = |
10
|
16
|
12
|
11
|
| 5. | 26 - 23 = |
3
|
5
|
4
|
9
|
| 6. | 9 - 2 = |
6
|
7
|
4
|
1
|
| 7. | 29 - 9 = |
11
|
12
|
20
|
10
|
| 8. | 28 - 20 = |
10
|
8
|
3
|
5
|
| 9. | 28 - 2 = |
34
|
26
|
37
|
29
|
| 10. | 16 - 3 = |
17
|
18
|
13
|
12
|
| 11. | 17 - 6 = |
11
|
16
|
18
|
10
|
| 12. | 5 - 2 = |
6
|
3
|
8
|
4
|