- Since 4 is in the tenths place, 12.459 is between 12.4 and 12.5
- 12.45 is the midpoint between 12.4 (12.40) and 12.5 (12.50)
- As illustrated on the number line, 12.459 is greater than the midpoint (12.45)
- Therefore, 12.459 rounded to the nearest tenth (one decimal place) = 12.5
%20with%20a%20number%20line.png "12.459 rounded to the nearest tenth (one decimal place) with a number line")
