Erafsommen tot en met 20
Erafsommen
| 1. | 20 - 3 = |
18
|
17
|
20
|
19
|
| 2. | 3 - 1 = |
2
|
7
|
4
|
10
|
| 3. | 16 - 13 = |
3
|
1
|
2
|
7
|
| 4. | 11 - 3 = |
4
|
8
|
5
|
6
|
| 5. | 12 - 5 = |
7
|
2
|
6
|
8
|
| 6. | 17 - 12 = |
7
|
5
|
2
|
3
|
| 7. | 6 - 4 = |
5
|
3
|
10
|
2
|
| 8. | 8 - 4 = |
2
|
4
|
5
|
10
|
| 9. | 14 - 10 = |
8
|
5
|
10
|
4
|
| 10. | 10 - 2 = |
8
|
1
|
3
|
2
|
| 11. | 11 - 5 = |
1
|
6
|
2
|
8
|
| 12. | 15 - 13 = |
9
|
2
|
10
|
6
|