| Places | Hundreds | Tens | Ones | Tenths | |
|---|---|---|---|---|---|
| Number | 4 | 2 | 0 | . | 3 |
| Rounded Number | 4 | 2 | 0 |
- 0 is in the ones place and 3 is in the tenths place
- Since the digit in the tenths place (3) is less than 5, the digit in the ones place (0) does not change
- The decimal point and the digit in the tenths place are dropped
- 420.3 rounded to the nearest whole number (ones place) = 420
