Turn your number lists into English flashcards with AI
Upload a worksheet, a photo of a page or your class notes. DeckOwl builds flashcards for number words, digits and ordinals, then schedules reviews with spaced repetition.
Practicing English numbers with flashcards
Number words are a common stumbling point for English learners, especially pairs like thirteen and thirty or fifteen and fifty. Good English number flashcards put the digit on one side and the spelled-out word on the other, so you practice both recognition and spelling.
- Pair each digit with its spelled-out word on the back of the card.
- Group teens and tens together so you can compare them directly.
- Add ordinals like first, second and third in their own set.
- Review in short sessions several times a week instead of one long cram.
Reads your own files
Upload PDFs, DOCX, PPTX, plain text notes or photos of pages and get cards built from that material.
Spaced repetition
Numbers you mix up come back more often, so practice goes where you need it most.
Study in the browser
The free plan lets you review cards in the browser without downloading anything.
How it works
Upload your material
Add a worksheet, slide deck or photo of your class notes.
Generate cards
DeckOwl creates digit and word pairs for you to review.
Review on schedule
Spaced repetition shows the trickiest numbers again before you forget them.
If you already have a worksheet or vocabulary list from class, upload it directly. DeckOwl reads PDFs, slides, notes and photos of pages, then generates cards you can review in the browser on the free plan.
Spaced repetition brings back the numbers you miss more often and spaces out the ones you know well, which suits number words that are easy to confuse. Plus adds PDF, DOCX, Anki and CSV export if you want to take the deck elsewhere.
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Frequently asked questions
How many number flashcards should I study at a time?
Start with 10 to 15 new cards per session and keep sessions to about ten minutes. Add more once you can spell the current set without hesitating.
Which English number ranges are hardest to learn?
Teens from thirteen to nineteen are often confused with the tens from thirty to ninety because their endings sound similar. Ordinals like fourth and fifth also trip people up because the spelling changes.
Can I study number flashcards for free?
Yes. The free plan includes 3 generations per month and studying in the browser, but exports are a paid feature.
Do I need to export my flashcards to use them?
No. You can study in the browser on the free plan. PDF, DOCX, Anki and CSV export require Plus, which is $39/year or $7.99/month.
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