| Places | Tens | Ones | Tenths | Hundredths | |
|---|---|---|---|---|---|
| 1 | 1 | ||||
| Number | 7 | 9 | . | 7 | 8 |
| Rounded Number | 8 | 0 |
- 9 is in the ones place and 7 is in the tenths place
- Since the digit in the tenths place (7) is greater than or equal to 5, add 1 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 (7)
- 1 + 7 = 8, so the digit in the tens place becomes 8
- The decimal point and the digits to the right of the ones place are dropped
- 79.78 rounded to the nearest whole number (ones place) = 80
