Erbijsommen t/m 50
Optellen
| 1. | 14 + 13 = |
27
|
49
|
39
|
23
|
| 2. | 23 + 13 = |
43
|
36
|
21
|
24
|
| 3. | 10 + 4 = |
20
|
17
|
14
|
10
|
| 4. | 6 + 5 = |
18
|
10
|
11
|
12
|
| 5. | 9 + 2 = |
11
|
12
|
14
|
18
|
| 6. | 10 + 4 = |
11
|
13
|
14
|
20
|
| 7. | 16 + 6 = |
30
|
22
|
25
|
45
|
| 8. | 21 + 3 = |
24
|
40
|
27
|
46
|
| 9. | 22 + 5 = |
27
|
37
|
30
|
44
|
| 10. | 20 + 15 = |
32
|
27
|
35
|
45
|
| 11. | 23 + 10 = |
33
|
28
|
37
|
31
|
| 12. | 10 + 6 = |
16
|
11
|
15
|
12
|