Turn your number words worksheet into flashcards with AI
Skip the generic printable. Upload a PDF, slides, notes or a photo of a page and get flashcards for the number words in your own lesson.
Why a custom set beats a generic printable
Most number words flashcards PDF files posted online follow a fixed list, so they rarely match the numbers your class is actually practicing. A set made from your own material keeps the same ranges, spellings and formats your teacher uses.
- Cards pair each numeral with its correct spelling.
- Ranges match the lesson, whether 0 to 20 or larger thousands.
- Spaced repetition brings back the numbers you still mix up.
- Export to PDF on Plus when you want a printed copy.
Starts from your material
Upload the worksheet, slide or notes your teacher gave you, and the flashcards follow the exact numbers in that lesson.
Spaced repetition built in
Cards you miss come back sooner and cards you know drop back in the schedule, so practice stays focused.
Export when you need paper
On Plus, export your set to PDF for printing, or to Anki or CSV if you prefer another study app.
How it works
Upload your file
Add a PDF, DOCX, PPTX, text file or a clear photo of a page with number words on it.
Review the cards
DeckOwl creates question and answer pairs. Check the numerals and spellings against your source.
Study or export
Practice in the browser on the free plan, or export a PDF on Plus for printing.
Number words are easy to get wrong in predictable ways. Compound numbers from 21 to 99 take a hyphen, as in twenty-one or sixty-three, while round tens like forty have none. Hundreds and thousands add their own patterns, such as one thousand five hundred eight, so cards that show both the numeral and the spelled-out form help you check your work.
Short, frequent sessions work better than one long review the night before a quiz. Spaced repetition keeps the trickiest numbers in rotation until you can write them without hesitating.
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Frequently asked questions
How do you write numbers from 21 to 99 in words?
Write the tens word, add a hyphen, then the ones word, as in twenty-one or ninety-nine. Round tens such as forty and seventy take no hyphen and no ones word.
How should I practice number words before a test?
Start with the numbers your test covers, then move to larger ranges once those feel automatic. Short daily sessions help more than one long cram.
Can I export these flashcards as a PDF?
PDF export is a paid feature on the Plus plan, which costs $99.90/year or $9.99/month. The free plan lets you study the cards in your browser with 5 generations a week.
Do I need a credit card to start?
No. You can start on the free plan without a credit card, and students get 40% off with a school email.
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