Erbijsommen tot en met 50
Erbijsommen
| 1. | 16 + 14 = |
25
|
20
|
30
|
29
|
| 2. | 22 + 19 = |
38
|
32
|
28
|
41
|
| 3. | 21 + 8 = |
33
|
40
|
25
|
29
|
| 4. | 19 + 10 = |
29
|
37
|
28
|
33
|
| 5. | 13 + 11 = |
44
|
24
|
20
|
32
|
| 6. | 22 + 9 = |
27
|
38
|
31
|
41
|
| 7. | 9 + 3 = |
12
|
17
|
13
|
20
|
| 8. | 19 + 18 = |
31
|
37
|
38
|
33
|
| 9. | 16 + 9 = |
38
|
45
|
25
|
27
|
| 10. | 9 + 2 = |
13
|
11
|
15
|
17
|
| 11. | 4 + 2 = |
6
|
10
|
5
|
3
|
| 12. | 23 + 19 = |
28
|
49
|
42
|
26
|