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Maths · गणित

Learn maths visually, step by step

39+ free explainersVisual lessons on requestLanguage and level options

Most people who say they are "bad at maths" were simply never shown why the rules work. A formula written on a board is a conclusion; the understanding lives in the steps that lead to it. Know.it's maths lessons are built around those steps: equations are solved line by line on an animated worksheet, triangles are drawn and measured, and graphs grow as the numbers change, so you can see what each operation does.

Here you'll find our free maths explainers, from foundations like fractions, percentages and order of operations, through algebra, geometry and the Pythagorean theorem, to probability, statistics and calculus. There are also comparisons for easily confused ideas, like fractions vs decimals. Every card links to a short written answer. Visual lessons are optional requests using available credits or plan allowance.

You can also type any specific problem — "solve x² − 5x + 6 = 0" or "why is anything to the power zero equal to one?" — and get a lesson that works through that exact question. Lessons can be narrated in English, Hindi, Marathi, Tamil, Telugu, Hinglish and Minglish, depending on your plan and selected lesson options.

Ask anything about maths

New visual lessons use your available allowance or credits. Written guides and Public Library replays are free.

Most-watched in the free Public Library

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What is…? Maths explainers

Free written definitions, key facts and FAQs

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What is the Pythagorean theorem?

Mathematics · Free written explainer

What is algebra?

Mathematics · Free written explainer

What is probability?

Mathematics · Free written explainer

What is calculus?

Mathematics · Free written explainer

What is a fraction?

Mathematics · Free written explainer

What is a percentage?

Mathematics · Free written explainer

What is statistics?

Mathematics · Free written explainer

What is a logarithm?

Mathematics · Free written explainer

What is game theory?

Mathematics · Free written explainer

What is geometry?

Mathematics · Free written explainer

What is exponential growth?

Mathematics · Free written explainer

How does it work? Maths step by step

The mechanism, one step at a time

How do bacteria multiply?

Medicine & Health · Free written explainer

Maths comparisons

Commonly confused ideas, side by side

Fraction vs. Decimal: What's the Difference?

Fraction vs Decimal · Side by side

Fraction vs. Percentage: What's the Difference?

Fraction vs Percentage · Side by side

Ratio vs. Fraction: What's the Difference?

Ratio vs Fraction · Side by side

Scalar vs. Vector: What's the Difference?

Scalar vs Vector · Side by side

Distance vs. Displacement: What's the Difference?

Distance vs Displacement · Side by side

Key areas of maths

Where to start, and what each area covers.

Maths: frequently asked questions

Can Know.it solve my maths problem step by step?
Yes. Type the exact problem and the lesson works through it one step at a time on an animated worksheet, explaining why each step is allowed rather than just giving the answer.
What maths levels are covered?
Everything from school basics like fractions and percentages to algebra, geometry, probability, statistics and introductory calculus. You can pick a beginner, intermediate or advanced level for any lesson.
Can I learn maths in Hindi?
Yes. Maths lessons can be narrated in Hindi, Marathi, Tamil, Telugu or English, and in Hinglish if you prefer the mix of English terms and Hindi explanation many teachers use.
Is this good for board exam and competitive exam prep?
It's best for understanding the concept behind a chapter so formulas stop feeling random. Pair it with practice questions from your syllabus for exam fluency.
Are the maths lessons free?
Explainers are free to read, and Public Library lessons are free to watch. Try one new lesson without an account, then sign in for 3 free credits daily and 5 one-time starter credits. Daily credits refresh at midnight IST without rollover. Further new lessons use 1–3 credits or an active Plus or Premium pass, subject to daily limits.