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