Erafsommen t/m 30
Aftrekken
| 1. | 15 - 2 = |
11
|
15
|
14
|
13
|
| 2. | 27 - 17 = |
10
|
7
|
8
|
5
|
| 3. | 22 - 20 = |
2
|
3
|
9
|
8
|
| 4. | 22 - 11 = |
12
|
15
|
20
|
11
|
| 5. | 4 - 2 = |
7
|
8
|
5
|
2
|
| 6. | 23 - 19 = |
10
|
6
|
2
|
4
|
| 7. | 29 - 17 = |
12
|
20
|
11
|
19
|
| 8. | 14 - 1 = |
12
|
14
|
16
|
13
|
| 9. | 28 - 24 = |
4
|
3
|
5
|
6
|
| 10. | 4 - 2 = |
5
|
2
|
10
|
9
|
| 11. | 23 - 12 = |
18
|
16
|
11
|
19
|
| 12. | 24 - 5 = |
17
|
19
|
14
|
18
|