Erbijsommen tot en met 40
Erbijsommen
| 1. | 20 + 15 = |
23
|
35
|
34
|
21
|
| 2. | 14 + 1 = |
12
|
15
|
17
|
11
|
| 3. | 9 + 1 = |
7
|
3
|
10
|
5
|
| 4. | 17 + 14 = |
31
|
35
|
44
|
29
|
| 5. | 15 + 15 = |
27
|
42
|
23
|
30
|
| 6. | 16 + 8 = |
22
|
33
|
24
|
43
|
| 7. | 15 + 15 = |
28
|
30
|
45
|
44
|
| 8. | 15 + 8 = |
38
|
42
|
32
|
23
|
| 9. | 2 + 1 = |
5
|
8
|
4
|
3
|
| 10. | 15 + 3 = |
11
|
18
|
17
|
10
|
| 11. | 14 + 8 = |
22
|
23
|
21
|
29
|
| 12. | 13 + 1 = |
19
|
17
|
18
|
14
|