Turn your own worksheets into addition and subtraction flashcards
Printed sheets repeat the same problems. Upload the worksheet, lesson slides or notes you already have and DeckOwl builds flashcards from them, then schedules reviews so missed problems come back sooner.
Why custom cards beat a generic addition and subtraction sheet
Printed sheets get used up fast, and a generic page rarely matches the exact facts a child is stuck on. Turn the worksheet or notes you already have into a custom set, then export the addition and subtraction flashcards PDF version on the Plus plan.
- Reads PDF, DOCX, PPTX, plain text and photos of worksheets
- Flashcards use spaced repetition to bring back missed problems
- Free plan studies in the browser; PDF export is on Plus
- Start without a credit card and get 40% off with a school email
Built from your own pages
Upload a PDF, slides, notes or a photo of a worksheet and get cards that match your lesson.
Spaced repetition
Cards you miss come back more often, so practice goes to the problems that need it.
Export when you need print
Plus exports to PDF, DOCX, Anki and CSV for printing or for other study apps.
How it works
Upload your material
Add a PDF, DOCX, PPTX, text file or a photo of the page.
Generate your cards
DeckOwl turns the content into flashcards you can review right away.
Study and export
Practice in the browser, then export a PDF on Plus when you want a printed set.
Generated cards follow your own examples, so the set can include word problems, missing addends, or regrouping steps from a specific lesson. Spaced repetition then brings back the problems a student misses more often.
Start with single-digit facts, then move to two-digit regrouping once those are automatic. Keep each deck focused on one skill so a short daily session stays manageable.
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Turn a worksheet or PDF into addition and subtraction cards to 10 with spaced repetition.
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Make addition and subtraction flashcards to 20 from your own worksheets or notes.
Addition and Subtraction Flashcards to 20
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Frequently asked questions
How many addition and subtraction flashcards should I make for one session?
Start with 15 to 20 cards so each session stays short enough to finish. Add more once the first set feels easy, and keep each deck focused on one skill such as regrouping or missing addends.
Should I practice addition facts or regrouping first?
Build fluency with single-digit facts before moving to two-digit problems that require regrouping. Mixed sets help once the basics are automatic, because the student then has to choose the right operation.
Can I download my flashcards as a PDF?
PDF export is included with the Plus plan, which also gives unlimited generations and spaced repetition. The free plan lets you study in the browser but does not include exports.
Do I need a credit card to try DeckOwl?
No, you can start on the free plan without a credit card. It includes 3 generations per month, and students get 40% off with a school email.
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