- Determine the two consecutive multiples of 1,000 that bracket 648,721
- 648,721 is between 648,000 and 649,000
- 648,500 is the midpoint between 648,000 and 649,000
- As illustrated on the number line, 648,721 is greater than the midpoint (648,500)
- Therefore, 648,721 rounded to the nearest thousand = 649,000
