Ergänze die fehlenden Zahlen (2er Schritte) [2]
Zahlenfolgen
| 1. | < | 21 | < | 23 | < | < | |||
| 2. | 18 | < | < | < | < | 26 | |||
| 3. | 16 | < | < | < | < | 24 | |||
| 4. | 25 | < | < | < | 31 | < | |||
| 5. | 20 | < | < | < | < | 28 | |||
| 6. | < | < | < | 8 | < | 10 | |||
| 7. | 20 | < | < | 24 | < | < | |||
| 8. | < | 25 | < | < | 29 | < | |||
| 9. | < | 4 | < | < | 8 | < | |||
| 10. | < | < | 10 | < | < | 14 |