Study number flashcards on your phone, built from your material
Skip the printable sheets. Upload a PDF, slides, notes or a photo of a page and DeckOwl turns it into flashcards you review in any phone browser.
Why custom beats printable number flashcards
Printable sheets of number flashcards are easy to find, but they cover someone else's list of numbers, not the ones your class or textbook uses.
- Cards match your course, not a generic list
- Photos of worksheets are read with text recognition
- Study on any phone browser with the free plan
- Export to Anki, PDF or CSV with a paid plan
Built from your own material
Upload PDFs, DOCX, PPTX, plain text or photos of pages and get cards drawn from what you actually need to learn.
Spaced repetition
Cards come back at set intervals so number facts stick instead of fading after one cram session.
Study in the browser
The free plan lets you study on your phone in the browser, with no app to download.
How it works
Upload your material
Add a PDF, slide deck, notes file or a photo of a worksheet.
Generate your cards
DeckOwl reads the text and writes flashcards with a question on the front and the answer on the back.
Review on your phone
Open the deck in your phone's browser and study for a few minutes each day.
DeckOwl starts from your own pages instead. Upload a worksheet, a chapter or a photo of your notes, and the generator writes cards for the facts in that material. Because the deck opens in your browser, you can review on a phone during a commute or between classes.
Spaced repetition then schedules each card so the facts you miss come back sooner, which is more useful than rereading a printed sheet.
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Frequently asked questions
How many number flashcards should I make for a math unit?
Start with the facts you use most often, such as times tables up to 12 or the number bonds for your grade level. Ten to twenty new cards a day is a manageable pace for most students.
Which number facts should I memorize first?
Learn the multiplication facts, the squares of numbers 1 to 12, and common fraction and decimal conversions before moving to multi-step problems. Knowing these by heart makes harder work faster.
Can I study DeckOwl flashcards on my phone for free?
Yes. The free plan includes 3 generations per month and lets you study in the browser on your phone. Exporting to PDF, DOCX or Anki requires a paid plan.
Do I need to install an app to review on my phone?
No. Decks open in your phone's browser, so there is nothing to install. Spaced repetition is included with the Plus plan.
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