| Places | Thousands | Hundreds | Tens | Ones | Tenths | Hundredths | Thousandths | |
|---|---|---|---|---|---|---|---|---|
| 1 | 1 | 1 | 1 | 1 | ||||
| Number | 8 | 9 | 9 | 9 | . | 9 | 7 | 8 |
| Rounded Number | 9 | 0 | 0 | 0 | . | 0 |
- 9 is in the tenths place and 7 is in the hundredths place
- Since the digit in the hundredths place (7) is greater than or equal to 5, add 1 to the digit in the tenths place (9)
- 1 + 9 = 10, so the digit in the tenths place becomes 0, and 1 is added to the digit in the ones place (9)
- 1 + 9 = 10, so the digit in the ones place becomes 0, and 1 is added to the digit in the tens place (9)
- 1 + 9 = 10, so the digit in the tens place becomes 0, and 1 is added to the digit in the hundreds place (9)
- 1 + 9 = 10, so the digit in the hundreds place becomes 0, and 1 is added to the digit in the thousands place (8)
- 1 + 8 = 9, so the digit in the thousands place becomes 9
- The digits to the right of the tenths place are dropped
- 8,999.978 rounded to the nearest tenth (one decimal place) = 9,000.0
