| Places | Tens | Ones | Tenths | Hundredths | |
|---|---|---|---|---|---|
| Number | 2 | 0 | . | 5 | 1 |
| Rounded Number | 2 | 0 | . | 5 |
- 5 is in the tenths place and 1 is in the hundredths place
- Since the digit in the hundredths place (1) is less than 5, the digit in the tenths place (5) does not change
- The digit in the hundredths place is dropped
- 20.51 rounded to the nearest tenth (one decimal place) = 20.5
