- Since 5 is in the tenths place, 4.51 is between 4.5 and 4.6
- 4.55 is the midpoint between 4.5 (4.50) and 4.6 (4.60)
- As illustrated on the number line, 4.51 is less than the midpoint (4.55)
- Therefore, 4.51 rounded to the nearest tenth (one decimal place) = 4.5
%20with%20a%20number%20line.png "4.51 rounded to the nearest tenth (one decimal place) with a number line")
