Erafsommen t/m 20 (meerkeuze)
Aftrekken
| 1. | 16 - 8 = |
5
|
4
|
8
|
9
|
| 2. | 18 - 6 = |
12
|
15
|
11
|
18
|
| 3. | 16 - 1 = |
15
|
14
|
20
|
19
|
| 4. | 15 - 8 = |
7
|
5
|
8
|
2
|
| 5. | 20 - 18 = |
7
|
2
|
4
|
10
|
| 6. | 19 - 10 = |
3
|
1
|
9
|
8
|
| 7. | 20 - 10 = |
1
|
10
|
5
|
4
|
| 8. | 20 - 14 = |
7
|
6
|
9
|
8
|
| 9. | 18 - 13 = |
2
|
6
|
4
|
5
|
| 10. | 18 - 14 = |
4
|
3
|
9
|
5
|
| 11. | 19 - 19 = |
6
|
7
|
8
|
0
|
| 12. | 19 - 9 = |
9
|
5
|
10
|
3
|