Maths

Free Mixed subjects Ages 5+

Free lessons and practice in maths, science, computing, history, economics and more. Best known for maths, where it walks through a topic step by step and then gives you questions until it sticks.

Khan Academy is a non-profit and everything on it is free; it runs on donations. It's American, so the maths courses follow US grades rather than UK years, but the skills are the same and you can jump straight to a topic. Families can set up free accounts to follow a child's progress.

• Self-paced
• US grades, same maths
• Free parent accounts
• khanacademy.org

Free Maths Ages 5–16

Thousands of free maths videos and worksheets, plus the 5-a-day: five short questions a day to keep things ticking over. Popular for GCSE, with primary resources too.

Everything is organised by topic, each with a video, practice questions and answers, and there are GCSE revision cards, 5-a-day workbooks and primary study cards on top. The site is free and carries adverts; some of the cards and workbooks are also sold in print.

• GCSE and primary
• 5-a-day habit
• Free
• corbettmaths.com

Free Maths Ages 11+

Free GCSE and A-level maths revision: a video and worksheet for every topic, sorted by grade, plus past papers and mark schemes. Handy for working out which grade a topic sits at.

Topics run from Grade 1 up to Grade 8/9, so it's easy to see what to tackle next. It can now mark exam-style answers for you, handwritten working included, and has a predicted-grade calculator. The site says more than a million students and teachers use it.

• GCSE and A-level
• Sorted by grade
• Past papers included
• mathsgenie.co.uk

Free Maths Ages 5–16

Short, clear videos on the basics: place value, long division, fractions, percentages, geometry and the like. Good for the moment a method just isn't clicking and a different explanation might.

It's American, so it says 'math', but the arithmetic is the same. Videos are grouped from numeracy and arithmetic through fractions, ratios and geometry, with worksheets alongside.

• Primary and early secondary
• Short videos
• American, but it's still maths
• mathantics.com

Free Exams & qualifications Ages 11+

Free GCSE and A-level revision: video lessons, notes, quizzes, flashcards and exam questions, all in one place.

It covers 15 subjects across ten UK and international boards, including AQA, Edexcel, OCR, WJEC, CCEA and SQA, so it works in Scotland, Wales and Northern Ireland too. Its videos have more than 184 million views on YouTube. A free account keeps track of progress.

• GCSE and A-level
• Every UK board
• Free
• cognitoedu.org