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