Erbijsommen t/m 50
Optellen
| 1. | 16 + 1 = |
17
|
14
|
15
|
20
|
| 2. | 11 + 9 = |
11
|
13
|
12
|
20
|
| 3. | 21 + 5 = |
41
|
39
|
25
|
26
|
| 4. | 21 + 10 = |
31
|
27
|
25
|
46
|
| 5. | 24 + 3 = |
26
|
27
|
24
|
43
|
| 6. | 9 + 2 = |
17
|
14
|
11
|
19
|
| 7. | 21 + 21 = |
42
|
39
|
29
|
37
|
| 8. | 15 + 6 = |
21
|
34
|
20
|
29
|
| 9. | 8 + 5 = |
18
|
11
|
13
|
10
|
| 10. | 24 + 15 = |
24
|
43
|
39
|
40
|
| 11. | 25 + 9 = |
26
|
34
|
25
|
47
|
| 12. | 24 + 9 = |
32
|
33
|
21
|
26
|