Erafsommen tot en met 20
Erafsommen
| 1. | 17 - 14 = |
3
|
10
|
9
|
6
|
| 2. | 4 - 1 = |
3
|
2
|
6
|
7
|
| 3. | 4 - 1 = |
3
|
9
|
6
|
4
|
| 4. | 5 - 2 = |
7
|
9
|
2
|
3
|
| 5. | 13 - 13 = |
5
|
9
|
0
|
7
|
| 6. | 20 - 8 = |
17
|
10
|
12
|
16
|
| 7. | 12 - 3 = |
10
|
9
|
8
|
4
|
| 8. | 16 - 11 = |
9
|
7
|
5
|
3
|
| 9. | 8 - 7 = |
3
|
1
|
8
|
6
|
| 10. | 18 - 17 = |
1
|
3
|
5
|
7
|
| 11. | 14 - 5 = |
8
|
1
|
10
|
9
|
| 12. | 16 - 7 = |
1
|
9
|
7
|
2
|