- Determine the two consecutive multiples of 100 that bracket 12,149
- 12,149 is between 12,100 and 12,200
- 12,150 is the midpoint between 12,100 and 12,200
- As illustrated on the number line, 12,149 is less than the midpoint (12,150)
- Therefore, 12,149 rounded to the nearest hundred = 12,100
