Crazy Maths Games

Crazy Maths Games is a free collection of browser-based maths games built for UK secondary students, covering Key Stage 3 (Years 7 to 9), GCSE (Years 10 and 11) and A Level. The site, a Sticky Pig Studios project, lists 111 games at the time of writing, each tied to a single topic in number, algebra, geometry or statistics, so a student can practise one skill for a few minutes rather than sit through a long lesson.

Every game is free. There is no account, no login, no subscription and no advertising; you open a game, read the one-screen instructions and press Start. Best scores are saved on the device only. Timed games have a Practice mode switch that turns off the countdown, which helps learners who freeze under a clock. The games run on phones, tablets, Chromebooks and laptops with touch or keyboard controls.

Examples include the Times Tables Speed Challenge (choose tables from 2 to 12, answer 20 multiple-choice questions, with the correct answer shown after a miss), BODMAS Boss Battle for order of operations, HCF and LCM Factory, Expanding and Factorising for GCSE algebra, a Cumulative Frequency Grapher for GCSE statistics, Binomial Expansion Blitz at A Level and a Speed Distance Time Delivery Run. Games are labelled by key stage, year group, difficulty and the equivalent US grade, and there is a daily KS3 starter quiz and a Countdown numbers game.

Around the games sit short reference pages that show the method before linking into a game: factors with factor trees, fraction and decimal conversion, square and cube numbers, Roman numerals, area and volume formulas, angle rules and Pythagoras, trigonometry, and mean, median and mode. A teacher section has five-minute starters and whiteboard games; a parent guide suggests how long to spend and which games suit each school year.

For US homeschool families the content maps roughly to grades 6 to 12. The curriculum labels (KS3, GCSE, AQA, Edexcel, OCR) are British, and spellings follow UK English, but the mathematics is the same. The site states that it never shares email addresses and only sends a short teacher newsletter to people who subscribe.