Erafsommen t/m 20 (meerkeuze)
Aftrekken
| 1. | 11 - 9 = |
3
|
2
|
6
|
5
|
| 2. | 18 - 13 = |
6
|
8
|
2
|
5
|
| 3. | 17 - 12 = |
2
|
8
|
7
|
5
|
| 4. | 6 - 2 = |
4
|
7
|
6
|
3
|
| 5. | 7 - 5 = |
4
|
2
|
9
|
7
|
| 6. | 17 - 2 = |
20
|
16
|
11
|
15
|
| 7. | 18 - 7 = |
15
|
10
|
19
|
11
|
| 8. | 5 - 3 = |
7
|
3
|
2
|
1
|
| 9. | 10 - 1 = |
4
|
2
|
6
|
9
|
| 10. | 15 - 6 = |
7
|
3
|
9
|
1
|
| 11. | 6 - 6 = |
3
|
10
|
0
|
6
|
| 12. | 10 - 5 = |
2
|
6
|
7
|
5
|