Erbijsommen tot en met 30
Erbijsommen
| 1. | 14 + 2 = |
14
|
10
|
12
|
16
|
| 2. | 14 + 7 = |
30
|
22
|
21
|
48
|
| 3. | 15 + 4 = |
19
|
12
|
16
|
11
|
| 4. | 15 + 7 = |
27
|
46
|
47
|
22
|
| 5. | 14 + 13 = |
27
|
26
|
29
|
34
|
| 6. | 8 + 4 = |
16
|
19
|
12
|
15
|
| 7. | 13 + 5 = |
17
|
15
|
18
|
16
|
| 8. | 14 + 13 = |
27
|
44
|
38
|
42
|
| 9. | 13 + 8 = |
21
|
23
|
45
|
27
|
| 10. | 11 + 10 = |
21
|
23
|
43
|
33
|
| 11. | 10 + 4 = |
14
|
18
|
15
|
16
|
| 12. | 12 + 3 = |
10
|
17
|
15
|
13
|