Erbijsommen t/m 40
Optellen
| 1. | 13 + 11 = |
38
|
24
|
46
|
25
|
| 2. | 12 + 12 = |
26
|
25
|
24
|
33
|
| 3. | 14 + 2 = |
14
|
16
|
15
|
20
|
| 4. | 19 + 15 = |
49
|
34
|
43
|
46
|
| 5. | 12 + 7 = |
10
|
12
|
19
|
18
|
| 6. | 19 + 2 = |
38
|
26
|
21
|
28
|
| 7. | 19 + 4 = |
50
|
23
|
25
|
28
|
| 8. | 15 + 15 = |
21
|
28
|
30
|
40
|
| 9. | 2 + 1 = |
1
|
6
|
3
|
7
|
| 10. | 18 + 17 = |
33
|
47
|
35
|
20
|
| 11. | 18 + 2 = |
11
|
19
|
15
|
20
|
| 12. | 5 + 4 = |
1
|
7
|
6
|
9
|