Look at the 3rd decimal digit (the digit after the hundredths).
if it is the digit is less than 5 then round the number down by taking away the decimal point of the number after the 2nd decimal place;
However if it is 5 or more then round the number up by adding one on to the hundredths digit and removing the rest of the decimal part of the number after it
For example,4.749 rounds up to 4.75 because the 3rd decimal digit is a 9.
