| Places | Ones | Tenths | Hundredths | Thousandths | Ten Thousandths | Hundred Thousandths | |
|---|---|---|---|---|---|---|---|
| Number | 0 | . | 1 | 6 | 4 | 0 | 6 |
| Rounded Number | 0 | . | 1 | 6 | 4 |
- 4 is in the thousandths place and 0 is in the ten thousandths place
- Since the digit in the ten thousandths place (0) is less than 5, the digit in the thousandths place (4) does not change
- The digits to the right of the thousandths place are dropped
- 0.16406 rounded to the nearest thousandth (three decimal places) = 0.164
