| 1. | 20 - 3 = |
12
|
16
|
17
|
10
|
| 2. | 3 - 1 = |
8
|
6
|
2
|
9
|
| 3. | 8 - 7 = |
1
|
3
|
7
|
10
|
| 4. | 16 - 16 = |
1
|
0
|
5
|
9
|
| 5. | 9 - 5 = |
4
|
2
|
5
|
9
|
| 6. | 18 - 13 = |
3
|
8
|
1
|
5
|
| 7. | 19 - 1 = |
11
|
18
|
10
|
19
|
| 8. | 12 - 12 = |
0
|
10
|
9
|
3
|
| 9. | 6 - 3 = |
3
|
7
|
10
|
9
|
| 10. | 19 - 18 = |
8
|
9
|
1
|
10
|
| 11. | 18 - 9 = |
2
|
5
|
1
|
9
|
| 12. | 10 - 8 = |
3
|
10
|
4
|
2
|
| 1. | 20 - 3 = |
12
|
16
|
17
|
10
|
| 2. | 3 - 1 = |
8
|
6
|
2
|
9
|
| 3. | 8 - 7 = |
1
|
3
|
7
|
10
|
| 4. | 16 - 16 = |
1
|
0
|
5
|
9
|
| 5. | 9 - 5 = |
4
|
2
|
5
|
9
|
| 6. | 18 - 13 = |
3
|
8
|
1
|
5
|
| 7. | 19 - 1 = |
11
|
18
|
10
|
19
|
| 8. | 12 - 12 = |
0
|
10
|
9
|
3
|
| 9. | 6 - 3 = |
3
|
7
|
10
|
9
|
| 10. | 19 - 18 = |
8
|
9
|
1
|
10
|
| 11. | 18 - 9 = |
2
|
5
|
1
|
9
|
| 12. | 10 - 8 = |
3
|
10
|
4
|
2
|