Ergänze die fehlenden Zahlen (2er Schritte) [3]
Zahlenfolgen
| 1. | 8 | < | < | < | < | 16 | |||
| 2. | 4 | < | < | 8 | < | < | |||
| 3. | < | < | < | 7 | < | 9 | |||
| 4. | < | 5 | < | < | < | 11 | |||
| 5. | 7 | < | < | < | < | 15 | |||
| 6. | 5 | < | < | 9 | < | < | |||
| 7. | 12 | < | < | < | < | 20 | |||
| 8. | < | < | < | 16 | < | 18 | |||
| 9. | < | 6 | < | < | < | 12 | |||
| 10. | < | 5 | < | < | < | 11 |