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Turn your number notes into flashcards with AI

Upload a worksheet, slide deck or photo of your textbook page and get flashcards for the number facts you need to learn, scheduled for review over time.

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

Why a number flashcard app helps with math facts

Practicing number flashcard app habits works best when the cards come from the exact material your class uses, such as times tables, place value rules or Spanish numerals from a handout. DeckOwl reads your file and writes cards that match it, so you spend less time typing and more time recalling.

  • Upload a worksheet or photo and get cards built from it
  • Review missed number facts more often with spaced repetition
  • Study in the browser on the free plan
  • Export to Anki or CSV with the Plus plan
Example number flashcards for math facts and place value
How do you say 7 in Spanish?Siete. Spanish number words are worth learning as whole words, since counting and prices use them.
What is the place value of the 4 in 3,415?Hundreds. The 4 sits in the hundreds place, which is worth 400.
What is 6 × 7?42. Multiplication facts like this one are easiest to memorize in small daily batches.
Which prime numbers are between 10 and 20?11, 13, 17 and 19. Each has no divisors other than 1 and itself.
What is the square root of 144?12. Because 12 × 12 equals 144, the square root is 12.
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Cards from your own material

Upload PDFs, DOCX, PPTX, plain notes or photos of pages. Each card comes from the content you already study.

Spaced repetition

Cards you miss come back sooner, and the ones you know are spaced further apart so review time goes to the facts that need it.

Quizzes and mind maps too

Turn the same material into multiple choice, true/false or short answer quizzes with explanations, or into a mind map of related number topics.

How it works

Upload your material

Add a PDF, slide deck, notes file or a photo of a page. Text in photos is read with text recognition.

Review the generated cards

DeckOwl creates flashcards from your content. Read through them and study the ones that matter for your class.

Study on a schedule

Work through the deck in the browser. Spaced repetition brings back the cards you are most likely to forget.

Short daily sessions beat one long cram. Spaced repetition on the Plus plan spaces out review so the number facts you miss return more often, while the ones you already know appear less. Free accounts can study the cards in the browser, with 3 generations per month.

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Frequently asked questions

How many number flashcards should I make for one test?

Keep each deck focused on one topic, such as multiplication facts or place value, so it covers what the test asks. Shorter decks are easier to review in quick daily sessions.

What is the best way to memorize multiplication facts?

Practice a small set of facts every day and answer from memory before checking the back of the card. Spaced repetition then brings back the facts you miss more often.

Is DeckOwl free to use?

The free plan includes 3 generations per month and studying in the browser. Plus costs $39/year or $7.99/month and adds unlimited generations and exports.

Can I export number flashcards to Anki?

Yes, export to Anki is included in the Plus plan. Exports are not available on the free plan.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.