Turn your addition and subtraction worksheets into flashcards
Looking for ready-made printables? Upload your own worksheet, class notes, or a photo of a page and get custom flashcards that review the facts your child or class is working on, with spaced repetition.
Why practice with custom addition and subtraction cards
Young learners often need many short, repeated looks at the same facts before single-digit addition and subtraction become automatic, and online addition and subtraction flashcards are a convenient way to get those repetitions. Generic printables cover common facts, but they rarely match the problems on this week's homework.
- Works from worksheets, slides, typed notes, and photos of pages
- Spaced repetition brings missed facts back sooner
- Covers both addition and subtraction in the same deck
- Free plan includes three generations per month with no card required
Built from your worksheet
Upload a PDF, a slide deck, or a photo of a page. Text recognition reads the problems so the cards match what was actually assigned.
Spaced repetition
Cards you miss come back sooner and cards you know fade into longer gaps, so facts stick without rereading the same pile.
Study in the browser
The free plan works on any device with a browser. Nothing to install, and no credit card is needed to start.
How it works
Add your material
Upload a worksheet, notes, or a photo of a page with addition and subtraction problems.
Review the cards
Check the generated questions and answers, and edit any that do not match the level you want.
Practice daily
Study short sessions in the browser and let spaced repetition decide which facts need another look.
A stronger approach is to start from the material you already have. Upload the worksheet or the teacher's slides, and DeckOwl turns the problems into cards with questions on the front and answers on the back. Missed cards return more often, so practice focuses on the facts that are still shaky.
Free accounts can generate three sets per month and study them in the browser. Paid plans add unlimited generations and PDF or DOCX export, so you can print a custom set for a child who prefers paper.
Explore related topics
Addition and subtraction flashcards 0 to 18
Make addition and subtraction flashcards for 0 to 18 from your own worksheets or notes.
Addition and subtraction flashcards 0-20
Make 0-20 addition and subtraction flashcards from your own worksheet or notes.
Addition and Subtraction Flashcards PDF
Make custom addition and subtraction flashcards from your own PDFs, slides or notes.
Addition and Subtraction Flashcards to 10
Turn a worksheet or PDF into addition and subtraction cards to 10 with spaced repetition.
Addition and Subtraction Flashcards to 20
Make addition and subtraction flashcards to 20 from your own worksheets or notes.
Addition and Subtraction Flashcards to 20
Custom addition and subtraction flashcards up to 20 from your own worksheet, made with AI.
Addition and Subtraction Flashcards
Make custom addition and subtraction cards within 20 from your own worksheets.
Four-Operation Math Flashcards with AI
Custom addition, subtraction, multiplication and division flashcards from your notes.
Frequently asked questions
How many addition and subtraction flashcards should a child practice each day?
Short sessions of 10 to 15 cards work well for most early learners, and daily repetition matters more than long sessions. Start with facts within 10 or 20 before moving to larger numbers.
What order should addition and subtraction facts be learned in?
Many teachers begin with adding and subtracting 0, 1, and 2, then doubles such as 4 + 4, then make-ten facts such as 8 + 5. Fact families like 6 + 8 = 14, 8 + 6 = 14, and 14 − 8 = 6 help students connect the two operations.
Can I study these flashcards for free?
Yes. The free plan includes 3 generations per month and lets you study in the browser, but exports are not included.
Can I export the cards to print or use in Anki?
Export is a paid feature. Plus, at $39/year or $7.99/month, includes unlimited generations and PDF, DOCX, Anki, and CSV export.
Keep exploring the topic
Review the main ideas visually or practice recalling them.
Gimkit Teacher Account Alternative
Turn your own notes and slides into quizzes with explanations, exportable to Moodle and QTI.
Chemistry quiz bowl questions from notes
Make chemistry bowl practice questions from your notes, with explanations for each.
Class 12 NEET Biology Mind Maps
Turn your Class 12 biology notes into an editable mind map for NEET revision.
Data Science Mind Map Generator
Turn data science notes or PDFs into an editable AI mind map of topics and subtopics.