Erafsommen t/m 20 (meerkeuze)
Aftrekken
| 1. | 19 - 10 = |
7
|
8
|
6
|
9
|
| 2. | 6 - 5 = |
1
|
2
|
6
|
8
|
| 3. | 12 - 11 = |
9
|
1
|
10
|
2
|
| 4. | 11 - 3 = |
9
|
8
|
6
|
7
|
| 5. | 18 - 14 = |
10
|
4
|
1
|
2
|
| 6. | 17 - 17 = |
9
|
7
|
3
|
0
|
| 7. | 7 - 5 = |
5
|
3
|
2
|
10
|
| 8. | 5 - 4 = |
5
|
1
|
8
|
2
|
| 9. | 17 - 8 = |
9
|
2
|
5
|
8
|
| 10. | 18 - 18 = |
10
|
2
|
8
|
0
|
| 11. | 11 - 7 = |
4
|
1
|
7
|
2
|
| 12. | 17 - 11 = |
1
|
3
|
6
|
5
|