Rounding a number is the process of replacing it with an approximation to its value that is simpler to represent.
Three Steps to Round Decimals
(1) Underline the digit to be rounded
(2) Look at the number on the right of the underlined number.
* If it’s 5 or more, add one more to the underlined number.
* If it’s 4 or less, keep the underlined number the same.
(3) Eliminate the digits beyond the place being rounded.