Erbijsommen t/m 50
Optellen
| 1. | 13 + 7 = |
13
|
19
|
10
|
20
|
| 2. | 18 + 3 = |
21
|
45
|
34
|
44
|
| 3. | 13 + 13 = |
26
|
35
|
22
|
48
|
| 4. | 12 + 5 = |
16
|
17
|
13
|
11
|
| 5. | 14 + 8 = |
27
|
42
|
22
|
24
|
| 6. | 11 + 2 = |
13
|
10
|
18
|
19
|
| 7. | 23 + 8 = |
32
|
46
|
47
|
31
|
| 8. | 11 + 10 = |
30
|
21
|
27
|
28
|
| 9. | 23 + 8 = |
28
|
22
|
25
|
31
|
| 10. | 14 + 6 = |
19
|
20
|
18
|
16
|
| 11. | 23 + 4 = |
25
|
27
|
49
|
40
|
| 12. | 25 + 8 = |
24
|
41
|
33
|
29
|