GCSE mathematics questions on how to rearrange the subject of a formula appear on many exam papers and you can download the questions from here. They can be a little challenging and please do practice all of the problems; I'll post the answers very soon. The main things to remember when trying to rearrange the subject of the formula are: - Work down the page and … [Read more...]

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 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...]

Here's a series of GCSE percentage questions that I'm working through from the practice questions post . I hope that you've been able to work through without any problems! Here's also the worked answers. If you'd like to ask for any more detail, or you're not sure about anything, please do ask a question in the comments section. I'll let you know as soon as I've posted an … [Read more...]