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Make math learning flash cards from your own notes

Skip generic printable sheets. Upload your class PDFs, slides, notes or photos of worked problems and get flashcards that match what you are actually studying.

Create flashcards nowFree · No credit card required

Drop files here or browsePDF, DOCX, PPTX, text or photos of your notes · several files with Plus

Free · First set needs no signup · Creates flashcards in seconds

Why custom cards beat printable sets

Most printable sets cover generic drills, not the exact methods your class uses. DeckOwl reads your own material and builds math learning flash cards from it, so the questions match your course. Upload a PDF, slides, typed notes or a photo of a worked problem set, and the cards arrive ready to study.

Cards follow your textbook's notation and your teacher's methods
Each card tests one formula, definition or step
Missed cards return sooner through spaced repetition
Free plan includes 3 generations per month, studied in the browser

Example algebra flashcards for math learning

What is the quadratic formula?x = (−b ± √(b² − 4ac)) / 2a, for solving ax² + bx + c = 0.

What is the derivative of sin(x)?cos(x), because the derivative of sine is cosine.

What does the Pythagorean theorem state?In a right triangle, a² + b² = c², where c is the hypotenuse opposite the right angle.

What is slope-intercept form of a line?y = mx + b, where m is the slope and b is the y-intercept.

What do the interior angles of a triangle add up to?180 degrees, which is why two angles of a triangle determine the third.

Generate the full set

Built from your material

Cards come from the PDFs, slides, notes or photos you upload, so the formulas and methods match your course.

Spaced repetition

Cards you miss come back sooner, and cards you know are spaced further apart, so review time goes to the hard ones.

Quizzes and mind maps too

Turn the same material into practice quizzes with explanations or a mind map of how the topics connect.

How it works

Upload your math material

Add a PDF, DOCX, slide deck, plain text notes or a photo of a page. Photos are read with text recognition.

Review the generated cards

Check the fronts and backs, edit anything that does not match your textbook or teacher's method, then start studying.

Study on a schedule

Spaced repetition brings each card back at the right time. Free accounts study in the browser.

Good math cards test one step at a time: a formula, a definition, or a method applied to a short problem. Keep each back side to one idea so you can recall it in a few seconds, then let spaced repetition handle the review schedule.

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Frequently asked questions

How many math flashcards should I study in one session?

Shorter sessions you can finish tend to work better than long ones you skip. Start with the cards you missed last time, then add a few new ones.

What makes a good math flashcard?

A good card tests one formula, definition or step. Put the question on the front and a short, exact answer on the back, with the key condition or unit included.

Does DeckOwl cost anything to start?

The free plan gives you 3 generations per month and browser study, and no credit card is needed. Plus and Pro add unlimited generations and exports.

Can I export my math flashcards to Anki?

Yes, but export is a paid feature. Plus includes PDF, DOCX, Anki and CSV export for $39/year or $7.99/month, and students get 40% off with a school email.

Generate free flashcards

Keep exploring the topic

Review the main ideas visually or practice recalling them.