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