Erbijsommen t/m 30
Optellen
| 1. | 7 + 6 = |
13
|
12
|
15
|
17
|
| 2. | 8 + 7 = |
11
|
10
|
15
|
17
|
| 3. | 12 + 12 = |
49
|
43
|
24
|
20
|
| 4. | 9 + 7 = |
12
|
10
|
14
|
16
|
| 5. | 14 + 3 = |
13
|
11
|
12
|
17
|
| 6. | 15 + 8 = |
37
|
23
|
50
|
33
|
| 7. | 14 + 7 = |
21
|
24
|
42
|
50
|
| 8. | 14 + 12 = |
50
|
46
|
26
|
36
|
| 9. | 12 + 5 = |
18
|
17
|
19
|
16
|
| 10. | 9 + 1 = |
9
|
2
|
10
|
8
|
| 11. | 15 + 12 = |
48
|
27
|
34
|
35
|
| 12. | 9 + 8 = |
10
|
18
|
17
|
12
|