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