This BBC Bitesize article references Edexcel maths past papers, explores practice questions and worked examples to help students prepare for maths GCSE exams.

How does the GCSE maths exam work? The Edexcel GCSE maths exam is spread over three separate papers - each part is worth 80 marks and has a 33.3 per cent weighting.

About 500,000 teenagers sat the exam across England, and some took to Twitter to say they felt all was going well until they began the second paper in the maths non-calculator exam.

Find an expression, in terms of n, for the nth term of this sequence. Easy enough, work out the difference between each number, which in this case is 4, and then figure out the difference between that ...