Erbijsommen tot en met 50
Erbijsommen
| 1. | 11 + 5 = |
12
|
20
|
16
|
10
|
| 2. | 24 + 22 = |
25
|
46
|
39
|
27
|
| 3. | 25 + 13 = |
36
|
38
|
49
|
24
|
| 4. | 21 + 3 = |
44
|
31
|
24
|
32
|
| 5. | 15 + 1 = |
16
|
11
|
14
|
20
|
| 6. | 21 + 20 = |
41
|
40
|
29
|
23
|
| 7. | 9 + 5 = |
17
|
10
|
14
|
16
|
| 8. | 20 + 20 = |
30
|
40
|
22
|
42
|
| 9. | 25 + 4 = |
28
|
29
|
33
|
47
|
| 10. | 25 + 19 = |
44
|
25
|
38
|
35
|
| 11. | 22 + 21 = |
43
|
47
|
31
|
40
|
| 12. | 25 + 6 = |
20
|
31
|
42
|
36
|