Erbijsommen t/m 50
Optellen
| 1. | 21 + 15 = |
36
|
41
|
31
|
32
|
| 2. | 25 + 13 = |
49
|
50
|
40
|
38
|
| 3. | 13 + 6 = |
11
|
19
|
18
|
20
|
| 4. | 23 + 17 = |
27
|
40
|
41
|
42
|
| 5. | 13 + 6 = |
15
|
17
|
10
|
19
|
| 6. | 10 + 6 = |
20
|
16
|
13
|
19
|
| 7. | 15 + 15 = |
43
|
30
|
33
|
32
|
| 8. | 8 + 5 = |
20
|
16
|
14
|
13
|
| 9. | 23 + 14 = |
43
|
38
|
25
|
37
|
| 10. | 19 + 18 = |
31
|
36
|
37
|
20
|
| 11. | 24 + 7 = |
34
|
28
|
31
|
30
|
| 12. | 22 + 7 = |
30
|
47
|
33
|
29
|