Turn any worksheet into number spelling flashcards
Upload a photo of a page, a slide deck or your notes, and get cards with a numeral on the front and its spelled-out word on the back.
Why custom beats a printable sheet
Printed number spelling flash cards cover the same numbers for everyone, but your class may be drilling a different range, like thousands with commas or decimals. Generating cards from your own material keeps the practice aligned with what you are actually learning.
- Numerals up to the range your teacher assigned, including commas for thousands
- Spelled-out answers with correct hyphens, such as twenty-one and sixty-five
- Spaced repetition that prioritizes the number words you keep missing
- Cards built from your own PDF, slides, notes or photos instead of a generic list
Built from your material
Upload a worksheet, slides or a photo of a page and the cards match the exact numbers your class is working on.
Spaced repetition
Cards you miss come back sooner, so tricky teens and hundreds numbers get more practice than the ones you already know.
Study in the browser
The free plan lets you study generated cards right away with no download and no credit card needed to start.
How it works
Add your numbers
Upload a PDF, DOCX, PPTX, text notes or a photo of a worksheet that lists the numerals you need to practice.
Generate the cards
DeckOwl creates flashcards pairing each numeral with its spelled-out form, such as 47 and forty-seven.
Study on a schedule
Review the deck in the browser and let spaced repetition bring back the cards you find hardest.
Good number spelling practice moves from single digits to teens, tens, hundreds and then numbers with place value gaps, such as 3,004 becoming three thousand four. Seeing the numeral and the word side by side on each card trains both reading and writing.
Because the cards come from your source, you can regenerate a deck when the worksheet changes instead of hunting for a new printable. Students on a school email get 40% off paid plans if they want exports for another study app.
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Frequently asked questions
How do I practice spelling large numbers in words?
Start with numbers you can already spell, then add one place value at a time, such as tens, then hundreds, then thousands. Write the answer before checking the back of each card, and say the number aloud as you spell it.
What are common mistakes when spelling numbers?
Students often forget hyphens between tens and ones, like forty-seven, and drop the word and before decimals or in British-style phrasing. Zeros in the middle of a number, such as 1,004, are also easy to skip when writing the words.
Can I export number spelling flashcards?
Exports are a paid feature: PDF, DOCX, Anki and CSV exports are included in Plus at $39/year or $7.99/month. The free plan includes 3 generations per month and studying in the browser.
Do I need a credit card to try DeckOwl?
No. You can start on the free plan without a credit card and generate your first decks from your own material. Students with a school email get 40% off paid plans.
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