Erbijsommen t/m 30
Optellen
| 1. | 14 + 5 = |
19
|
18
|
11
|
10
|
| 2. | 12 + 8 = |
18
|
20
|
15
|
16
|
| 3. | 7 + 2 = |
4
|
9
|
3
|
8
|
| 4. | 2 + 2 = |
6
|
3
|
4
|
10
|
| 5. | 4 + 3 = |
6
|
7
|
8
|
5
|
| 6. | 14 + 13 = |
22
|
27
|
49
|
40
|
| 7. | 14 + 6 = |
12
|
20
|
13
|
14
|
| 8. | 15 + 3 = |
17
|
16
|
18
|
20
|
| 9. | 6 + 2 = |
9
|
8
|
10
|
1
|
| 10. | 6 + 4 = |
10
|
2
|
4
|
9
|
| 11. | 12 + 4 = |
18
|
19
|
16
|
10
|
| 12. | 11 + 2 = |
14
|
13
|
19
|
16
|