Erbijsommen tot en met 50
Erbijsommen
| 1. | 23 + 10 = |
49
|
33
|
35
|
20
|
| 2. | 11 + 3 = |
12
|
11
|
14
|
15
|
| 3. | 23 + 10 = |
38
|
33
|
22
|
41
|
| 4. | 12 + 5 = |
17
|
18
|
11
|
20
|
| 5. | 25 + 23 = |
40
|
25
|
48
|
34
|
| 6. | 18 + 4 = |
46
|
28
|
48
|
22
|
| 7. | 24 + 19 = |
38
|
43
|
47
|
37
|
| 8. | 7 + 3 = |
8
|
7
|
9
|
10
|
| 9. | 21 + 12 = |
33
|
36
|
44
|
20
|
| 10. | 18 + 3 = |
47
|
21
|
32
|
45
|
| 11. | 23 + 15 = |
42
|
38
|
37
|
34
|
| 12. | 19 + 13 = |
28
|
48
|
33
|
32
|