- Determine the two consecutive multiples of 100 that bracket 1,685
- 1,685 is between 1,600 and 1,700
- 1,650 is the midpoint between 1,600 and 1,700
- As illustrated on the number line, 1,685 is greater than the midpoint (1,650)
- Therefore, 1,685 rounded to the nearest hundred = 1,700
