GCSE maths standard form - or 'scientific notation' - questions appear on many exam papers and you can download the questions here. They can be relatively straightforward although you need to be careful about making sure that you apply the rules. The main things to remember when working with GCSE standard form questions are: Always make sure you check the number of … [Read more...]

GCSE maths place value questions appear on many exam papers and you can download the questions here. They can be relatively straightforward although you need to be careful about making sure that you apply the rules. The main things to remember when working with GCSE maths place value questions are: Always make the decimal point clear in your answer - it could lose you a … [Read more...]

 This video is about how to 'rationalise the denominator' - which is just a way of changing the bottom of a fraction to a whole number - and gives a few examples: 5 divided by 3√2 becomes 5√2 / 6 and 18 divided by √3 becomes 6√3 Like many of these exercises, in isolation, they appear to be fairly irrelevant - it's only when you need to manipulate equations in … [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...]