- Determine the two consecutive multiples of 100 that bracket 12,455
- 12,455 is between 12,400 and 12,500
- 12,450 is the midpoint between 12,400 and 12,500
- As illustrated on the number line, 12,455 is greater than the midpoint (12,450)
- Therefore, 12,455 rounded to the nearest hundred = 12,500
