Erafsommen t/m 30
Aftrekken
| 1. | 15 - 3 = |
12
|
15
|
18
|
16
|
| 2. | 19 - 2 = |
11
|
17
|
13
|
16
|
| 3. | 29 - 27 = |
2
|
6
|
8
|
1
|
| 4. | 24 - 16 = |
5
|
8
|
9
|
10
|
| 5. | 27 - 12 = |
19
|
20
|
16
|
15
|
| 6. | 24 - 17 = |
9
|
8
|
7
|
4
|
| 7. | 21 - 19 = |
5
|
8
|
1
|
2
|
| 8. | 8 - 2 = |
4
|
10
|
5
|
6
|
| 9. | 26 - 3 = |
20
|
21
|
23
|
32
|
| 10. | 30 - 23 = |
3
|
5
|
9
|
7
|
| 11. | 14 - 9 = |
9
|
3
|
8
|
5
|
| 12. | 25 - 17 = |
9
|
5
|
1
|
8
|