Use rounding to check answers to calculations and determine, in the context of a problem, levels of accuracy
| 1. | About Half: 615 89 58 915 | |
| 2. | Roundabout 62km | |
| 3. | About Half: 506 895 | |
| 4. | About Half: 296 99 | |
| 5. | About Half: 701 399 | |
| 6. | About Half: 498 595 | |
| 7. | About Half: 603 199 | |
| 8. | About Half: 597 899 | |
| 9. | About Half: 903 394 | |
| 10. | About Half: 697 802 | |
| 11. | About Half: 796 202 | |
| 12. | About Half: 408 307 | |
| 13. | About Half: 902 394 | |
| 14. | About Half: 303 406 | |
| 15. | About Half: 797 196 | |
| 16. | About Half: 501 297 | |
| 17. | About Half: 97 607 |