| Places | Tens | Ones | Tenths | Hundredths | Thousandths | |
|---|---|---|---|---|---|---|
| Number | 5 | 0 | . | 1 | 0 | 9 |
| Rounded Number | 5 | 0 |
- 0 is in the ones place and 1 is in the tenths place
- Since the digit in the tenths place (1) is less than 5, the digit in the ones place (0) does not change
- The decimal point and the digits to the right of the ones place are dropped
- 50.109 rounded to the nearest whole number (ones place) = 50
