Erafsommen tot en met 20 (meerkeuze)
Erafsommen
| 1. | 16 - 4 = |
19
|
16
|
13
|
12
|
| 2. | 7 - 5 = |
4
|
3
|
5
|
2
|
| 3. | 16 - 11 = |
10
|
4
|
1
|
5
|
| 4. | 12 - 3 = |
3
|
9
|
10
|
7
|
| 5. | 11 - 11 = |
0
|
2
|
10
|
7
|
| 6. | 18 - 7 = |
12
|
20
|
11
|
18
|
| 7. | 19 - 15 = |
8
|
4
|
2
|
6
|
| 8. | 18 - 18 = |
2
|
3
|
9
|
0
|
| 9. | 20 - 13 = |
4
|
8
|
3
|
7
|
| 10. | 9 - 7 = |
10
|
6
|
2
|
5
|
| 11. | 13 - 2 = |
10
|
12
|
16
|
11
|
| 12. | 19 - 13 = |
3
|
7
|
6
|
4
|