- Determine the two consecutive multiples of 100 that bracket 31,148
- 31,148 is between 31,100 and 31,200
- 31,150 is the midpoint between 31,100 and 31,200
- As illustrated on the number line, 31,148 is less than the midpoint (31,150)
- Therefore, 31,148 rounded to the nearest hundred = 31,100
