Ergänze die fehlenden Zahlen (3er Schritte) [2]
Zahlenfolgen
| 1. | < | < | 13 | < | < | 19 | |||
| 2. | 8 | < | < | < | 17 | < | |||
| 3. | 13 | < | < | < | 22 | < | |||
| 4. | 24 | < | < | < | 33 | < | |||
| 5. | 25 | < | 28 | < | < | < | |||
| 6. | < | < | 21 | < | < | 27 | |||
| 7. | 27 | < | < | < | < | 39 | |||
| 8. | 28 | < | < | < | < | 40 | |||
| 9. | < | < | 17 | < | 20 | < | |||
| 10. | 25 | < | < | 31 | < | < |