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