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