| Places | Hundreds | Tens | Ones |
|---|---|---|---|
| Number | 1 | 7 | 2 |
| Rounded Number | 1 | 7 | 0 |
- 7 is in the tens place and 2 is in the ones place
- Since the digit in the ones place (2) is less than 5, the digit in the tens place (7) does not change
- 0 replaces the (2) in the ones place
- 172 rounded to the nearest ten = 170
