| Places | Tens | Ones | Tenths | Hundredths | Thousandths | Ten Thousandths | Hundred Thousandths | Millionths | Ten Millionths | |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | ||||||||||
| Number | 1 | 0 | . | 8 | 6 | 3 | 6 | 3 | 6 | 4 |
| Rounded Number | 1 | 0 | . | 9 |
- 8 is in the tenths place and 6 is in the hundredths place
- Since the digit in the hundredths place (6) is greater than or equal to 5, add 1 to the digit in the tenths place (8)
- 1 + 8 = 9, so the digit in the tenths place becomes 9
- The digits to the right of the tenths place are dropped
- 10.8636364 rounded to the nearest tenth (one decimal place) = 10.9
