Erbijsommen tot 50
Erbijsommen
| Oefening 1 | |||||
| 1. | 19 | + | 3 | = |
|
| 2. | 20 | + | 13 | = |
|
| 3. | 21 | + | 14 | = |
|
| 4. | 12 | + | 11 | = |
|
| 5. | 12 | + | 2 | = |
|
| 6. | 11 | + | 9 | = |
|
| 7. | 7 | + | 2 | = |
|
| 8. | 24 | + | 7 | = |
|
| 9. | 19 | + | 7 | = |
|
| 10. | 24 | + | 8 | = |
|
| Oefening 2 | |||||
| 1. | 10 | + | 3 | = |
|
| 2. | 21 | + | 19 | = |
|
| 3. | 25 | + | 12 | = |
|
| 4. | 8 | + | 6 | = |
|
| 5. | 21 | + | 18 | = |
|
| 6. | 19 | + | 19 | = |
|
| 7. | 25 | + | 22 | = |
|
| 8. | 20 | + | 14 | = |
|
| 9. | 24 | + | 1 | = |
|
| 10. | 8 | + | 7 | = |
|
| Oefening 3 | |||||
| 1. | 4 | + | 3 | = |
|
| 2. | 20 | + | 14 | = |
|
| 3. | 25 | + | 1 | = |
|
| 4. | 22 | + | 3 | = |
|
| 5. | 9 | + | 8 | = |
|
| 6. | 22 | + | 4 | = |
|
| 7. | 18 | + | 1 | = |
|
| 8. | 11 | + | 4 | = |
|
| 9. | 25 | + | 16 | = |
|
| 10. | 19 | + | 12 | = |
|
| Oefening 4 | |||||
| 1. | 19 | + | 11 | = |
|
| 2. | 10 | + | 4 | = |
|
| 3. | 18 | + | 7 | = |
|
| 4. | 25 | + | 10 | = |
|
| 5. | 16 | + | 7 | = |
|
| 6. | 2 | + | 1 | = |
|
| 7. | 11 | + | 3 | = |
|
| 8. | 20 | + | 2 | = |
|
| 9. | 5 | + | 2 | = |
|
| 10. | 1 | + | 1 | = |
|