| Places | Thousands | Hundreds | Tens | Ones | Tenths | |
|---|---|---|---|---|---|---|
| 1 | ||||||
| Number | 1 | 8 | 6 | 4 | . | 8 |
| Rounded Number | 1 | 8 | 6 | 5 |
- 4 is in the ones place and 8 is in the tenths place
- Since the digit in the tenths place (8) is greater than or equal to 5, add 1 to the digit in the ones place (4)
- 1 + 4 = 5, so the digit in the ones place becomes 5
- The decimal point and the digit in the tenths place are dropped
- 1,864.8 rounded to the nearest whole number (ones place) = 1,865
