Erafsommen tot en met 30
Erafsommen
| 1. | 12 - 9 = |
3
|
2
|
5
|
9
|
| 2. | 27 - 20 = |
9
|
7
|
2
|
8
|
| 3. | 8 - 4 = |
7
|
8
|
6
|
4
|
| 4. | 16 - 12 = |
1
|
4
|
8
|
3
|
| 5. | 27 - 15 = |
18
|
15
|
12
|
17
|
| 6. | 25 - 10 = |
17
|
10
|
20
|
15
|
| 7. | 26 - 15 = |
11
|
20
|
18
|
14
|
| 8. | 30 - 27 = |
7
|
3
|
8
|
5
|
| 9. | 28 - 27 = |
4
|
8
|
3
|
1
|
| 10. | 23 - 5 = |
18
|
17
|
10
|
16
|
| 11. | 30 - 29 = |
1
|
5
|
4
|
8
|
| 12. | 18 - 10 = |
3
|
5
|
9
|
8
|