Revision tools to complement the calculators. Practise times tables interactively, reference square and cube numbers, download the complete GCSE maths formula sheet with KaTeX-rendered formulae, and look up any maths term in our comprehensive A-Z glossary.

Unlike calculators that show only the final answer, every Pythagorist tool displays the complete method — the same working you would write in an exam. This means you can understand the process, not just copy a number. Students who understand the method score more marks, because examiners award points for correct working even when the final answer contains an arithmetic error.