Vul de getallen verder in, met sprongen tussen 20 en 50
Getallen
| 1. | < | 391 | < | < | < | 511 | |||
| 2. | < | < | 948 | < | 980 | < | |||
| 3. | < | 144 | < | < | 210 | < | |||
| 4. | < | < | 339 | < | 365 | < | |||
| 5. | < | 388 | < | < | < | 481 | |||
| 6. | 549 | < | < | < | < | 685 | |||
| 7. | 939 | < | < | < | < | 1.063 | |||
| 8. | < | 285 | < | 317 | < | < | |||
| 9. | 498 | < | < | < | < | 646 | |||
| 10. | < | 727 | < | 762 | < | < |