Erafsommen t/m 20 (meerkeuze)
Aftrekken
| 1. | 5 - 3 = |
5
|
2
|
4
|
10
|
| 2. | 18 - 4 = |
19
|
14
|
17
|
20
|
| 3. | 17 - 10 = |
7
|
6
|
8
|
3
|
| 4. | 16 - 9 = |
1
|
7
|
2
|
9
|
| 5. | 17 - 14 = |
2
|
6
|
8
|
3
|
| 6. | 18 - 8 = |
1
|
8
|
6
|
10
|
| 7. | 20 - 11 = |
9
|
5
|
4
|
8
|
| 8. | 16 - 7 = |
6
|
5
|
9
|
1
|
| 9. | 13 - 10 = |
10
|
8
|
3
|
7
|
| 10. | 15 - 1 = |
12
|
11
|
19
|
14
|
| 11. | 14 - 8 = |
8
|
6
|
5
|
2
|
| 12. | 8 - 6 = |
6
|
2
|
1
|
4
|