Erbijsommen t/m 40
Optellen
| 1. | 5 + 5 = |
3
|
6
|
10
|
2
|
| 2. | 15 + 9 = |
45
|
46
|
48
|
24
|
| 3. | 13 + 3 = |
19
|
16
|
11
|
13
|
| 4. | 4 + 2 = |
10
|
5
|
6
|
3
|
| 5. | 16 + 16 = |
34
|
29
|
45
|
32
|
| 6. | 5 + 2 = |
3
|
4
|
7
|
2
|
| 7. | 17 + 7 = |
35
|
31
|
24
|
33
|
| 8. | 20 + 14 = |
34
|
50
|
35
|
20
|
| 9. | 17 + 3 = |
13
|
19
|
20
|
10
|
| 10. | 20 + 3 = |
28
|
39
|
23
|
47
|
| 11. | 17 + 7 = |
40
|
26
|
25
|
24
|
| 12. | 6 + 4 = |
10
|
7
|
5
|
1
|