Vul de getallen verder in, met sprongen tussen 20 en 50
Getallen
| 1. | < | 287 | < | < | < | 407 | |||
| 2. | 843 | < | < | < | < | 999 | |||
| 3. | < | < | 622 | < | < | 702 | |||
| 4. | < | 276 | < | 300 | < | < | |||
| 5. | 562 | < | < | < | < | 682 | |||
| 6. | < | 697 | < | < | < | 793 | |||
| 7. | < | 930 | < | < | < | 1.002 | |||
| 8. | < | < | < | 393 | < | 424 | |||
| 9. | < | < | < | 803 | < | 850 | |||
| 10. | < | < | < | 755 | < | 781 |