Erafsommen tot en met 20 (meerkeuze)
Erafsommen
| 1. | 17 - 1 = |
15
|
18
|
17
|
16
|
| 2. | 19 - 8 = |
13
|
11
|
17
|
20
|
| 3. | 18 - 5 = |
12
|
11
|
14
|
13
|
| 4. | 15 - 13 = |
2
|
10
|
9
|
4
|
| 5. | 20 - 1 = |
15
|
13
|
19
|
11
|
| 6. | 18 - 7 = |
20
|
12
|
13
|
11
|
| 7. | 10 - 7 = |
6
|
3
|
2
|
5
|
| 8. | 10 - 10 = |
1
|
0
|
10
|
2
|
| 9. | 19 - 19 = |
8
|
6
|
0
|
1
|
| 10. | 19 - 8 = |
13
|
14
|
11
|
17
|
| 11. | 10 - 6 = |
8
|
4
|
6
|
9
|
| 12. | 14 - 10 = |
1
|
4
|
5
|
2
|