| Places | Ones | Tenths | Hundredths | |
|---|---|---|---|---|
| 1 | ||||
| Number | 4 | . | 1 | 8 |
| Rounded Number | 4 | . | 2 |
- 1 is in the tenths place and 8 is in the hundredths place
- Since the digit in the hundredths place (8) is greater than or equal to 5, add 1 to the digit in the tenths place (1)
- 1 + 1 = 2, so the digit in the tenths place becomes 2
- The digit in the hundredths place is dropped
- 4.18 rounded to the nearest tenth (one decimal place) = 4.2
