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Turn your math notes into flash cards with AI

Skip the generic printable sheets. Upload your own material and get flashcards that match what your class covers, with spaced repetition built in.

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 account · 3 sets a month · Creates flashcards in seconds

Why make your own math flash cards

Printable sheets are fine until the chapter you are studying is not on them. Most ready-made math flash cards cover generic problems, so the time saved on printing often goes to practice that does not match your class. DeckOwl builds cards from your own notes, textbook PDF, or photographed worked examples, so the drill matches what your teacher assigned.

Cards come from the exact formulas, definitions, and examples in your course material.
You can edit any generated card before you start studying it.
Spaced repetition schedules review based on which cards you struggle with.
The free plan lets you study in the browser, with 3 generations per month.

Example algebra and geometry math flash cards

What is the quadratic formula for solving ax² + bx + c = 0?x = (−b ± √(b² − 4ac)) / 2a. Use it when factoring is hard or does not give whole-number roots.

What is the slope of a line through (x1, y1) and (x2, y2)?(y2 − y1) / (x2 − x1), the change in y divided by the change in x. It is undefined when x2 equals x1 because the line is vertical.

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

What is the sum of the interior angles of a triangle?180 degrees. This holds for every triangle in flat Euclidean geometry, so two angles give you the third.

What is the distance formula between two points?√((x2 − x1)² + (y2 − y1)²). It is the Pythagorean theorem applied to the horizontal and vertical gaps between the points.

Generate the full set

Built from your material

Upload a PDF, slides, DOCX, plain notes, or a photo of a worked example, and the text is read and turned into cards.

Spaced repetition

Cards you keep missing come back more often, so practice time goes to the formulas and steps you actually need.

Quizzes and mind maps too

Turn the same material into multiple choice, true/false, or short answer quizzes with explanations, or map how the topics connect.

How it works

Upload your notes

Add a PDF, slides, a DOCX file, plain text, or a photo of the page from your textbook or whiteboard.

Review the cards

Check the generated questions and answers, then edit any card that needs a clearer prompt or a corrected step.

Study on a schedule

Work through the deck in the browser. Spaced repetition brings back the cards you miss until they become automatic.

Upload a PDF, slides, a DOCX, or a photo of a page, and the text is read and turned into question-and-answer cards. Spaced repetition then brings back the formulas and steps you keep missing, which is where most of the useful study time goes.

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Frequently asked questions

How many math flash cards should I make for one test?

Make one card per formula, definition, or solution step you need to recall, then trim the deck as cards become automatic. Focus on the methods your teacher uses in class rather than every problem in the book.

What should go on the front and back of a math card?

Put the prompt on the front, such as a formula name or the setup of a problem, and put the result plus a short reason on the back. Cards that explain why a step works tend to stick better than cards that only list an answer.

Can I export my math flash cards to Anki or print them?

Export is a paid feature. Plus ($99.90/year or $9.99/month) includes PDF, DOCX, Anki, and CSV export, so you can print a PDF or move the deck into Anki.

Do I need a credit card to try it?

No. You can start on the free plan with 3 generations per month and no credit card. Students get 40% off Plus with a school email.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.