How to Round off a number?

Rounding off the numbers :

Rounding means making a number simpler but keeping its value close to what it was.

The result is less accurate, but easier to use. 

To round off decimals:

• Find the place value you want (the "rounding digit") and look at the digit just to the right of it.
• If that digit is less than 5, do not change the rounding digit but drop all digits to the right of it.
• If that digit is greater than or equal to 5, add 1 to the rounding digit and drop all digits to the right of it.

To round off whole numbers:

• Find the place value you want (the "rounding digit") and look to the digit just to the right of it.
• If that digit is less than 5, do not change the "rounding digit" but change all digits to the right of the "rounding digit" to zero.
• If that digit is greater than or equal to 5, add 1 to the rounding digit and change all digits to the right of the rounding digit to zero.