| Places | Ones | Tenths | Hundredths | |
|---|---|---|---|---|
| Number | 3 | . | 9 | 1 |
| Rounded Number | 3 | . | 9 |
- 9 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 (9) does not change
- The digit in the hundredths place is dropped
- 3.91 rounded to the nearest tenth (one decimal place) = 3.9
