GCSE mathematics 'common difference' arithmetic sequence questions appear on many exam papers. This is where the same number is added, or subtracted, each time. For instance the sequence 12, 16, 20, 24, 28 .... has a common difference of  add 4 ...... or 16, 8, 0, -8, -16 has a common difference of subtract 8. You're usually asked to create a formula for 'the nth term' and … [Read more...]

Takeaway subtract fractions questions appear on many exam papers throughout primary and high school. This particular question deals with: The main things to remember when working with takeaway or subtract fractions questions are: The bottom numbers 'the denominators' need to be the same (in this question they are both 12) Takeaway the numbers ... and then the … [Read more...]

GCSE mathematics vector questions appear on many exam papers and you can download the questions here. They can be a little challenging and please do practice all of the problems. The main things to remember when working with GCSE mathematics vector questions are: Make sure you read the question thoroughly - there's usually lots of A, B and C's to show angles or straight … [Read more...]

            GCSE mathematics enlargement by a negative scale factor questions appear on many exam papers and you can download the questions here. The main things to remember when working with these types of questions are: Always draw the 'lines of enlargement' as accurately as possible - they really help to show where the … [Read more...]

GCSE maths Highest Common Factor HCF & Lowest Common Multiple LCM questions appear on many exam papers and you can download the questions here. There are a couple of different ways of approaching these types of problems, although using a factor tree is the most popular. Other options would be to use short division ... or writing out the highest common factors or lowest … [Read more...]