Erafsommen tot en met 20
Erafsommen
| 1. | 19 - 17 = |
2
|
6
|
5
|
3
|
| 2. | 17 - 6 = |
15
|
18
|
11
|
12
|
| 3. | 13 - 1 = |
15
|
12
|
10
|
18
|
| 4. | 15 - 15 = |
10
|
1
|
0
|
8
|
| 5. | 20 - 8 = |
19
|
12
|
18
|
15
|
| 6. | 16 - 11 = |
4
|
5
|
10
|
2
|
| 7. | 14 - 8 = |
5
|
1
|
3
|
6
|
| 8. | 14 - 10 = |
4
|
10
|
2
|
3
|
| 9. | 10 - 4 = |
6
|
9
|
5
|
2
|
| 10. | 17 - 5 = |
11
|
14
|
12
|
18
|
| 11. | 10 - 8 = |
7
|
4
|
2
|
3
|
| 12. | 10 - 9 = |
10
|
7
|
1
|
8
|