| Vraag | Antwoord |
|---|---|
| 5 + 5 | 10 |
| 7 + 9 | 16 |
| 7 + 6 | 13 |
| 5 + 11 | 16 |
| 9 + 8 | 17 |
| 8 + 5 | 13 |
| 9 + 5 | 14 |
| 6 + 12 | 18 |
| 10 + 6 | 16 |
| 9 + 10 | 19 |
| 8 + 9 | 17 |
| 10 + 9 | 19 |
| 9 + 9 | 18 |
| 8 + 7 | 15 |
| 6 + 7 | 13 |
Optelsommen binnen 5–20.
| Vraag | Antwoord |
|---|---|
| 5 + 5 | 10 |
| 7 + 9 | 16 |
| 7 + 6 | 13 |
| 5 + 11 | 16 |
| 9 + 8 | 17 |
| 8 + 5 | 13 |
| 9 + 5 | 14 |
| 6 + 12 | 18 |
| 10 + 6 | 16 |
| 9 + 10 | 19 |
| 8 + 9 | 17 |
| 10 + 9 | 19 |
| 9 + 9 | 18 |
| 8 + 7 | 15 |
| 6 + 7 | 13 |