Let’s see what Jerry and Albert are buying for their holiday. Looking good! We should work out how much money they’ll need. Let’s make a rough estimate by rounding the costs to the nearest pound.

\(3.168\) is correct to three decimal places as there are three digits after the decimal point. If the number at the next decimal place is five or more add 1 to the previous decimal place. With ...

It’s so tempting to round off numbers and present your audience with pretty whole numbers rather than cluttering up the text with decimal points and a string of digits. Sometimes rounding a number up ...