| 1. | 17 - 10 = |
3
|
7
|
8
|
10
|
| 2. | 27 - 12 = |
16
|
20
|
18
|
15
|
| 3. | 20 - 2 = |
15
|
11
|
18
|
17
|
| 4. | 26 - 20 = |
8
|
6
|
3
|
2
|
| 5. | 40 - 31 = |
5
|
9
|
10
|
6
|
| 6. | 39 - 35 = |
2
|
8
|
4
|
1
|
| 7. | 38 - 18 = |
15
|
14
|
20
|
16
|
| 8. | 31 - 26 = |
8
|
3
|
5
|
10
|
| 9. | 31 - 2 = |
46
|
48
|
37
|
29
|
| 10. | 21 - 12 = |
3
|
5
|
6
|
9
|
| 11. | 38 - 17 = |
50
|
43
|
21
|
33
|
| 12. | 39 - 18 = |
28
|
33
|
21
|
41
|
| 1. | 17 - 10 = |
3
|
7
|
8
|
10
|
| 2. | 27 - 12 = |
16
|
20
|
18
|
15
|
| 3. | 20 - 2 = |
15
|
11
|
18
|
17
|
| 4. | 26 - 20 = |
8
|
6
|
3
|
2
|
| 5. | 40 - 31 = |
5
|
9
|
10
|
6
|
| 6. | 39 - 35 = |
2
|
8
|
4
|
1
|
| 7. | 38 - 18 = |
15
|
14
|
20
|
16
|
| 8. | 31 - 26 = |
8
|
3
|
5
|
10
|
| 9. | 31 - 2 = |
46
|
48
|
37
|
29
|
| 10. | 21 - 12 = |
3
|
5
|
6
|
9
|
| 11. | 38 - 17 = |
50
|
43
|
21
|
33
|
| 12. | 39 - 18 = |
28
|
33
|
21
|
41
|