Vul de getallen verder in, met sprongen tussen 20 en 50
Getallen
| 1. | < | 448 | < | 491 | < | < | |||
| 2. | 464 | < | 488 | < | < | < | |||
| 3. | < | 129 | < | 151 | < | < | |||
| 4. | < | < | 472 | < | < | 554 | |||
| 5. | 609 | < | < | < | 741 | < | |||
| 6. | < | < | 151 | < | 172 | < | |||
| 7. | < | 737 | < | < | 817 | < | |||
| 8. | < | 140 | < | 179 | < | < | |||
| 9. | < | < | 799 | < | < | 855 | |||
| 10. | 378 | < | 398 | < | < | < |