- Determine the two consecutive multiples of 100 that bracket 9.1
- 9.1 is between 0 and 100
- 50 is the midpoint between 0 and 100
- As illustrated on the number line, 9.1 is less than the midpoint (50)
- Therefore, 9.1 rounded to the nearest hundred = 0

The solution above and other related solutions were provided by the Round to the Nearest Hundred with a Number Line Application.