Erbijsommen tot en met 40
Erbijsommen
| 1. | 6 + 1 = |
7
|
1
|
10
|
9
|
| 2. | 14 + 13 = |
27
|
22
|
43
|
47
|
| 3. | 4 + 2 = |
6
|
1
|
2
|
5
|
| 4. | 17 + 2 = |
15
|
13
|
16
|
19
|
| 5. | 14 + 7 = |
21
|
32
|
30
|
43
|
| 6. | 9 + 6 = |
16
|
20
|
11
|
15
|
| 7. | 16 + 6 = |
42
|
47
|
23
|
22
|
| 8. | 19 + 8 = |
27
|
31
|
30
|
29
|
| 9. | 17 + 7 = |
35
|
50
|
42
|
24
|
| 10. | 10 + 10 = |
19
|
20
|
14
|
16
|
| 11. | 20 + 6 = |
26
|
45
|
36
|
37
|
| 12. | 10 + 6 = |
16
|
10
|
15
|
14
|