Erbijsommen tot en met 50
Erbijsommen
| 1. | 7 + 7 = |
13
|
20
|
14
|
19
|
| 2. | 10 + 3 = |
20
|
16
|
14
|
13
|
| 3. | 20 + 5 = |
46
|
49
|
25
|
34
|
| 4. | 19 + 9 = |
28
|
50
|
43
|
25
|
| 5. | 16 + 11 = |
46
|
42
|
27
|
29
|
| 6. | 13 + 5 = |
17
|
18
|
15
|
14
|
| 7. | 19 + 11 = |
30
|
48
|
42
|
21
|
| 8. | 11 + 9 = |
17
|
20
|
16
|
13
|
| 9. | 16 + 14 = |
28
|
49
|
30
|
22
|
| 10. | 25 + 4 = |
23
|
32
|
29
|
36
|
| 11. | 24 + 17 = |
46
|
22
|
38
|
41
|
| 12. | 11 + 10 = |
44
|
28
|
21
|
29
|