Erbijsommen t/m 50
Optellen
| 1. | 24 + 23 = |
38
|
47
|
39
|
27
|
| 2. | 16 + 9 = |
48
|
30
|
25
|
40
|
| 3. | 7 + 5 = |
12
|
20
|
10
|
17
|
| 4. | 11 + 4 = |
20
|
10
|
19
|
15
|
| 5. | 15 + 13 = |
36
|
34
|
28
|
50
|
| 6. | 15 + 6 = |
27
|
50
|
48
|
21
|
| 7. | 17 + 3 = |
16
|
20
|
17
|
15
|
| 8. | 15 + 9 = |
24
|
39
|
30
|
43
|
| 9. | 14 + 10 = |
25
|
42
|
24
|
46
|
| 10. | 19 + 18 = |
33
|
37
|
36
|
23
|
| 11. | 16 + 10 = |
37
|
43
|
26
|
28
|
| 12. | 18 + 15 = |
23
|
33
|
50
|
47
|