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