Erafsommen t/m 30
Aftrekken
| 1. | 22 - 1 = |
33
|
38
|
20
|
21
|
| 2. | 23 - 7 = |
16
|
20
|
13
|
14
|
| 3. | 19 - 6 = |
19
|
16
|
18
|
13
|
| 4. | 16 - 1 = |
10
|
16
|
17
|
15
|
| 5. | 18 - 1 = |
10
|
19
|
16
|
17
|
| 6. | 22 - 12 = |
10
|
1
|
5
|
8
|
| 7. | 21 - 3 = |
20
|
18
|
15
|
14
|
| 8. | 4 - 1 = |
5
|
4
|
3
|
2
|
| 9. | 30 - 26 = |
2
|
5
|
7
|
4
|
| 10. | 29 - 28 = |
9
|
7
|
3
|
1
|
| 11. | 29 - 24 = |
6
|
5
|
9
|
7
|
| 12. | 28 - 16 = |
20
|
12
|
16
|
18
|