- Since 2 is in the tenths place, 0.2102052135 is between 0.2 and 0.3
- 0.25 is the midpoint between 0.2 (0.20) and 0.3 (0.30)
- As illustrated on the number line, 0.2102052135 is less than the midpoint (0.25)
- Therefore, 0.2102052135 rounded to the nearest tenth (one decimal place) = 0.2
%20with%20a%20number%20line.png "0.2102052135 rounded to the nearest tenth (one decimal place) with a number line")
