| Places | Thousands | Hundreds | Tens | Ones | Tenths | |
|---|---|---|---|---|---|---|
| 1 | ||||||
| Number | 4 | 3 | 9 | 0 | . | 5 |
| Rounded Number | 4 | 3 | 9 | 1 |
- 0 is in the ones place and 5 is in the tenths place
- Since the digit in the tenths place (5) is greater than or equal to 5, add 1 to the digit in the ones place (0)
- 1 + 0 = 1, so the digit in the ones place becomes 1
- The decimal point and the digits to the right of the ones place are dropped
- 4,390.5 rounded to the nearest whole number (ones place) = 4,391
