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