| Places | Ten Thousands | Thousands | Hundreds | Tens | Ones | Tenths | Hundredths | Thousandths | Ten Thousandths | Hundred Thousandths | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Number | 1 | 5 | 5 | 0 | 5 | . | 2 | 1 | 1 | 2 | 5 |
| Rounded Number | 1 | 5 | 5 | 0 | 5 | . | 2 |
- 2 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 (2) does not change
- The digits to the right of the tenths place are dropped
- 15,505.21125 rounded to the nearest tenth (one decimal place) = 15,505.2
