Mental Maths
Maths Tricks & Hacks – Solve Maths Problems Faster
Fun techniques to check divisibility, multiply quickly, add and subtract in your head, find percentages without a calculator, and even solve quadratic equations.
Every trick has its own page, and every page follows the same easy pattern. First, we state the rule in plain words. Then we explain why it works and show worked examples. Finally, you practise with an interactive question and a set of practice questions with answers.
The tricks are grouped into a few broad categories. Pick a category to jump straight to its first trick, then use the previous and next links on each page to work through them in order.
Choose a category below to start learning.
Keep going
These tricks build on the basics. If a trick feels shaky, revisit the lesson behind it, or test yourself with a quiz.