Ergänze die fehlenden Zahlen (3er Schritte)
Zahlenfolgen
| 1. | < | < | 15 | < | 18 | < | |||
| 2. | 10 | < | < | < | 19 | < | |||
| 3. | < | 11 | < | < | 17 | < | |||
| 4. | 12 | < | < | < | 21 | < | |||
| 5. | 4 | < | < | < | 13 | < | |||
| 6. | 15 | < | < | < | 24 | < | |||
| 7. | < | < | 24 | < | 27 | < | |||
| 8. | 4 | < | < | 10 | < | < | |||
| 9. | < | 9 | < | < | 15 | < | |||
| 10. | 4 | < | < | < | < | 16 |