- Since 1 is in the tenths place, 3.14 is between 3.1 and 3.2
- 3.15 is the midpoint between 3.1 (3.10) and 3.2 (3.20)
- As illustrated on the number line, 3.14 is less than the midpoint (3.15)
- Therefore, 3.14 rounded to the nearest tenth (one decimal place) = 3.1
%20with%20a%20number%20line.png "3.14 rounded to the nearest tenth (one decimal place) with a number line")
