Erafsommen t/m 40
Aftrekken
| 1. | 29 - 8 = |
29
|
47
|
49
|
21
|
| 2. | 12 - 5 = |
9
|
1
|
5
|
7
|
| 3. | 9 - 8 = |
5
|
1
|
8
|
9
|
| 4. | 34 - 23 = |
19
|
17
|
20
|
11
|
| 5. | 28 - 18 = |
4
|
6
|
9
|
10
|
| 6. | 34 - 33 = |
10
|
6
|
7
|
1
|
| 7. | 32 - 20 = |
11
|
15
|
12
|
20
|
| 8. | 13 - 10 = |
3
|
9
|
10
|
4
|
| 9. | 18 - 3 = |
15
|
17
|
13
|
19
|
| 10. | 35 - 33 = |
4
|
6
|
1
|
2
|
| 11. | 23 - 10 = |
13
|
20
|
14
|
11
|
| 12. | 40 - 40 = |
5
|
8
|
0
|
7
|