Search for GCSE Maths Resources
What you need to know
What you need to know:
You are often asked to round a number, particularly an answer to a question, to
a) the nearest whole number,
b) a given number of decimal places (d.p.)
c) a given number of significant figures (s.f.). In all 3 cases, this involves rounding to a set number of digits, and we do that by looking at the next digit along to see if it’s either less than 5 (round down), or greater than or equal to 5 (round up).
Counting decimal places is self-explanatory; counting begins at the decimal point. Counting significant figures involves starting your counting from the first non-zero term, e.g. rounding 0.0568 to 2 significant figures gives us 0.057.
Questions may ask you to round to an “appropriate degree of accuracy”. This can be determined by looking at how accurate the numbers in the question are. If they are all rounded to 2 or 3 significant figures, then it’s appropriate for you to round your answer to 2 or 3 s.f. also.
Rounding Numbers Revision and Worksheets
Rounding Numbers Teaching Resources
For GCSE Maths tutors in Leeds to London and everywhere between, you are welcome to use our GCSE Maths rounding numbers resources as part of your teaching. The worksheets are a great way to set homework and the online tests provide a way of monitoring progress. If you are interested in receiving more tuition work then sign up to become a Maths Made Easy Tutor.
Find a Trusted Local Tutor