Erbijsommen tot en met 50
Erbijsommen
| 1. | 9 + 9 = |
13
|
18
|
12
|
11
|
| 2. | 20 + 5 = |
25
|
20
|
44
|
42
|
| 3. | 3 + 1 = |
10
|
4
|
9
|
2
|
| 4. | 21 + 11 = |
49
|
47
|
32
|
22
|
| 5. | 7 + 1 = |
5
|
9
|
10
|
8
|
| 6. | 9 + 4 = |
13
|
11
|
17
|
15
|
| 7. | 17 + 6 = |
40
|
23
|
35
|
21
|
| 8. | 14 + 9 = |
44
|
27
|
23
|
29
|
| 9. | 23 + 9 = |
29
|
34
|
28
|
32
|
| 10. | 10 + 4 = |
14
|
20
|
19
|
18
|
| 11. | 15 + 2 = |
15
|
17
|
11
|
12
|
| 12. | 14 + 7 = |
25
|
39
|
43
|
21
|