Erafsommen t/m 40
Aftrekken
| 1. | 37 - 20 = |
13
|
20
|
17
|
12
|
| 2. | 13 - 11 = |
8
|
2
|
9
|
1
|
| 3. | 34 - 8 = |
24
|
23
|
26
|
48
|
| 4. | 21 - 10 = |
20
|
10
|
11
|
14
|
| 5. | 24 - 16 = |
1
|
2
|
8
|
5
|
| 6. | 38 - 31 = |
2
|
8
|
7
|
5
|
| 7. | 38 - 9 = |
29
|
36
|
33
|
45
|
| 8. | 19 - 13 = |
6
|
5
|
2
|
10
|
| 9. | 20 - 12 = |
8
|
6
|
2
|
5
|
| 10. | 22 - 17 = |
3
|
6
|
5
|
4
|
| 11. | 39 - 2 = |
37
|
26
|
42
|
41
|
| 12. | 28 - 23 = |
6
|
5
|
2
|
9
|