Erbijsommen tot en met 30
Erbijsommen
| 1. | 12 + 10 = |
35
|
46
|
41
|
22
|
| 2. | 8 + 5 = |
14
|
13
|
20
|
17
|
| 3. | 15 + 2 = |
10
|
17
|
14
|
16
|
| 4. | 5 + 4 = |
9
|
8
|
2
|
3
|
| 5. | 15 + 11 = |
50
|
26
|
25
|
34
|
| 6. | 13 + 8 = |
50
|
44
|
21
|
29
|
| 7. | 10 + 1 = |
12
|
14
|
11
|
17
|
| 8. | 11 + 6 = |
12
|
17
|
15
|
20
|
| 9. | 14 + 6 = |
20
|
13
|
17
|
11
|
| 10. | 15 + 1 = |
16
|
13
|
18
|
10
|
| 11. | 5 + 4 = |
1
|
8
|
10
|
9
|
| 12. | 15 + 10 = |
24
|
22
|
25
|
38
|