Erafsommen t/m 30
Aftrekken
| 1. | 30 - 10 = |
17
|
10
|
11
|
20
|
| 2. | 28 - 23 = |
7
|
3
|
5
|
2
|
| 3. | 29 - 5 = |
38
|
24
|
29
|
31
|
| 4. | 22 - 15 = |
6
|
5
|
4
|
7
|
| 5. | 30 - 6 = |
24
|
23
|
50
|
34
|
| 6. | 30 - 25 = |
10
|
1
|
5
|
2
|
| 7. | 7 - 5 = |
10
|
4
|
2
|
9
|
| 8. | 19 - 4 = |
19
|
11
|
15
|
14
|
| 9. | 27 - 11 = |
10
|
16
|
13
|
11
|
| 10. | 27 - 6 = |
20
|
21
|
49
|
39
|
| 11. | 10 - 1 = |
1
|
7
|
9
|
4
|
| 12. | 24 - 11 = |
18
|
11
|
13
|
19
|