Erafsommen t/m 40
Aftrekken
| 1. | 21 - 17 = |
9
|
7
|
4
|
10
|
| 2. | 12 - 1 = |
16
|
17
|
15
|
11
|
| 3. | 13 - 9 = |
7
|
4
|
6
|
1
|
| 4. | 28 - 13 = |
15
|
11
|
12
|
19
|
| 5. | 28 - 19 = |
1
|
3
|
9
|
10
|
| 6. | 32 - 30 = |
9
|
1
|
3
|
2
|
| 7. | 38 - 6 = |
32
|
35
|
36
|
48
|
| 8. | 20 - 9 = |
15
|
11
|
19
|
16
|
| 9. | 9 - 3 = |
7
|
6
|
10
|
5
|
| 10. | 24 - 22 = |
8
|
10
|
2
|
3
|
| 11. | 29 - 20 = |
9
|
1
|
3
|
6
|
| 12. | 33 - 9 = |
24
|
23
|
22
|
40
|