- Since 1 is in the tenths place, 89.1201 is between 89.1 and 89.2
- 89.15 is the midpoint between 89.1 (89.10) and 89.2 (89.20)
- As illustrated on the number line, 89.1201 is less than the midpoint (89.15)
- Therefore, 89.1201 rounded to the nearest tenth (one decimal place) = 89.1
%20with%20a%20number%20line.png "89.1201 rounded to the nearest tenth (one decimal place) with a number line")
