Erafsommen t/m 15 (meerkeuze)
Aftrekken
| 1. | 11 - 9 = |
7
|
9
|
2
|
10
|
| 2. | 13 - 1 = |
12
|
18
|
14
|
10
|
| 3. | 6 - 5 = |
5
|
1
|
7
|
4
|
| 4. | 14 - 5 = |
9
|
10
|
4
|
8
|
| 5. | 9 - 8 = |
2
|
3
|
1
|
6
|
| 6. | 9 - 5 = |
4
|
2
|
9
|
10
|
| 7. | 9 - 6 = |
5
|
3
|
7
|
10
|
| 8. | 9 - 6 = |
7
|
6
|
3
|
8
|
| 9. | 11 - 6 = |
1
|
4
|
5
|
9
|
| 10. | 12 - 8 = |
4
|
9
|
8
|
1
|
| 11. | 11 - 6 = |
5
|
2
|
4
|
9
|
| 12. | 8 - 6 = |
7
|
6
|
2
|
9
|