27.54 rounded off

27.54 rounded off to the nearest whole number is 28.

To round off 27.54, follow these steps:

1. Look at the digit in the thousandths place (the third decimal place), which is 4.
2. Since 4 is less than 5, we do not need to round up.
3. Leave the digits in the hundreds, tens, and ones places unchanged.
4. Replace all the digits after the thousandths place with zeros.
5. The rounded off value of 27.54 is 27.540.