Erafsommen t/m 20 (meerkeuze)
Aftrekken
| 1. | 14 - 5 = |
7
|
9
|
1
|
8
|
| 2. | 17 - 10 = |
7
|
2
|
3
|
5
|
| 3. | 16 - 6 = |
2
|
8
|
10
|
9
|
| 4. | 15 - 12 = |
2
|
1
|
3
|
6
|
| 5. | 13 - 9 = |
1
|
9
|
2
|
4
|
| 6. | 12 - 10 = |
2
|
1
|
9
|
4
|
| 7. | 10 - 8 = |
1
|
8
|
2
|
6
|
| 8. | 10 - 5 = |
3
|
9
|
2
|
5
|
| 9. | 11 - 8 = |
3
|
10
|
8
|
6
|
| 10. | 12 - 12 = |
2
|
5
|
0
|
6
|
| 11. | 20 - 14 = |
6
|
1
|
4
|
10
|
| 12. | 20 - 7 = |
13
|
11
|
18
|
10
|