Erbijsommen tot en met 40
Erbijsommen
| 1. | 20 + 8 = |
24
|
41
|
33
|
28
|
| 2. | 12 + 12 = |
24
|
21
|
23
|
22
|
| 3. | 14 + 5 = |
11
|
16
|
19
|
14
|
| 4. | 11 + 11 = |
43
|
21
|
35
|
22
|
| 5. | 11 + 9 = |
11
|
20
|
14
|
17
|
| 6. | 18 + 4 = |
22
|
32
|
24
|
50
|
| 7. | 20 + 6 = |
26
|
43
|
28
|
31
|
| 8. | 18 + 3 = |
32
|
45
|
39
|
21
|
| 9. | 16 + 4 = |
16
|
14
|
18
|
20
|
| 10. | 5 + 1 = |
1
|
7
|
6
|
3
|
| 11. | 11 + 10 = |
29
|
22
|
21
|
26
|
| 12. | 16 + 11 = |
46
|
41
|
35
|
27
|