| 1. | 5 h = min | |
| 2. | 48 h = d | |
| 3. | 9 mo = d | |
| 4. | 1 mo and 21 d = wk | |
| 5. | 10 d and 72 h = d | |
| 6. | 14 mo and 6 wk = wk | |
| 7. |
May 30, 2002 and October 21, 2014
y, mo, d, |
|
| 8. |
July 25, 1997 and March 15, 2008
y, mo, d, |
|
| 9. |
February 21, 2012 and August 30, 2023
y, mo, d, |
|
| 10. |
September 13, 1990 and June 29, 2016
y, mo, d, |
|
| 11. | 6000 mL = L | |
| 12. | 8 L = mL | |
| 13. | 18 L = mL | |
| 14. | 30 000 mL = L | |
| 15. |
|
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| 16. | 30 m = cm | |||||||||||
| 17. | 7 km = m | |||||||||||
| 18. | 400 cm = m | |||||||||||
| 19. | 150 dm = cm | |||||||||||
| 20. | 2000 m = km | |||||||||||
| 21. | 3 kg = g | |
| 22. | 5 g = mg | |
| 23. | 4000 g = kg | |
| 24. | 1000 mg = g | |