Erbijsommen t/m 50
Optellen
| 1. | 21 + 1 = |
23
|
37
|
29
|
22
|
| 2. | 22 + 8 = |
28
|
32
|
30
|
21
|
| 3. | 22 + 20 = |
36
|
38
|
49
|
42
|
| 4. | 5 + 2 = |
7
|
4
|
9
|
8
|
| 5. | 21 + 15 = |
45
|
23
|
25
|
36
|
| 6. | 18 + 15 = |
33
|
46
|
24
|
25
|
| 7. | 8 + 5 = |
10
|
13
|
19
|
18
|
| 8. | 11 + 5 = |
10
|
16
|
12
|
11
|
| 9. | 14 + 1 = |
10
|
13
|
15
|
12
|
| 10. | 25 + 9 = |
34
|
21
|
46
|
32
|
| 11. | 23 + 12 = |
35
|
38
|
28
|
21
|
| 12. | 13 + 7 = |
11
|
20
|
16
|
17
|