Erafsommen t/m 30
Aftrekken
| 1. | 11 - 3 = |
9
|
3
|
7
|
8
|
| 2. | 24 - 15 = |
10
|
3
|
9
|
2
|
| 3. | 17 - 3 = |
12
|
13
|
10
|
14
|
| 4. | 23 - 12 = |
13
|
11
|
16
|
20
|
| 5. | 9 - 4 = |
3
|
1
|
8
|
5
|
| 6. | 30 - 6 = |
42
|
31
|
50
|
24
|
| 7. | 7 - 1 = |
6
|
7
|
10
|
2
|
| 8. | 19 - 3 = |
11
|
12
|
15
|
16
|
| 9. | 17 - 8 = |
5
|
3
|
9
|
7
|
| 10. | 10 - 8 = |
7
|
8
|
6
|
2
|
| 11. | 14 - 9 = |
5
|
2
|
7
|
8
|
| 12. | 26 - 2 = |
30
|
24
|
43
|
40
|