Erbijsommen t/m 30
Optellen
| 1. | 3 + 2 = |
10
|
5
|
6
|
1
|
| 2. | 13 + 9 = |
33
|
39
|
22
|
44
|
| 3. | 13 + 1 = |
20
|
14
|
11
|
19
|
| 4. | 13 + 11 = |
24
|
28
|
30
|
38
|
| 5. | 4 + 4 = |
3
|
2
|
8
|
7
|
| 6. | 6 + 4 = |
1
|
10
|
8
|
7
|
| 7. | 6 + 5 = |
17
|
16
|
11
|
10
|
| 8. | 10 + 3 = |
11
|
16
|
13
|
19
|
| 9. | 4 + 2 = |
8
|
6
|
7
|
3
|
| 10. | 15 + 12 = |
22
|
31
|
39
|
27
|
| 11. | 11 + 3 = |
11
|
12
|
14
|
15
|
| 12. | 7 + 2 = |
2
|
9
|
10
|
4
|