| Places | Hundreds | Tens | Ones | Tenths | Hundredths | |
|---|---|---|---|---|---|---|
| Number | 3 | 3 | 9 | . | 1 | 2 |
| Rounded Number | 3 | 3 | 9 | . | 1 |
- 1 is in the tenths place and 2 is in the hundredths place
- Since the digit in the hundredths place (2) is less than 5, the digit in the tenths place (1) does not change
- The digit in the hundredths place is dropped
- 339.12 rounded to the nearest tenth (one decimal place) = 339.1
