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