Get printable math flashcards for addition to 20 from your sheets
Skip the generic printable set. Upload a worksheet, notes or a photo of a page, and get addition cards built from the exact problems your learner is working on.
Printing your own addition to 20 cards
Students learning sums within 20 often need more repetition than a single worksheet provides. A stack of printable math flashcards addition to 20 lets them practice in short sessions, but the most useful set is one built from the problems they are actually working on.
- Make-a-ten cards such as 9 + 6
- Doubles facts such as 7 + 7 and 8 + 8
- Count-on practice starting from the larger number
- Missing-addend cards such as 12 + ? = 17
Built from your own pages
Upload a PDF worksheet, a slide deck, typed notes or a photo of a page. Text recognition reads it and turns it into addition cards.
Spaced repetition
Cards a learner misses come back sooner, so sums within 20 stick without daily drilling from the same sheet.
Print when you need paper
Plus exports your set to PDF, so you can print it for the classroom table, a homework folder or the car ride.
How it works
Upload your material
Add a worksheet photo, a PDF or typed notes covering addition to 20.
Generate and check the cards
Review the flashcards and remove any that don't match your learner's level.
Print or study
Export to PDF on Plus to print, or study in the browser on the free plan.
DeckOwl creates that set from your own material. Upload a worksheet photo, a school PDF or typed notes, and the tool writes question-and-answer cards. Spaced repetition then brings back the facts a learner misses, so the easy sums stop eating up study time.
Explore related topics
Addition Flash Cards 0-20 Custom Set
Custom addition flash cards for 0 to 20, built from your own worksheet. Study free in your browser.
Printable Addition Flashcards 1 to 20
Custom addition cards for 1 to 20 from your own worksheet or notes.
Printable Addition Flashcards 1-20
Turn your own addition sheet into flashcards from 1 to 20, with answers included.
Printable Addition Flash Cards 0 to 20
Make custom printable addition flashcards from your own sheets; PDF export is on Plus.
Printable Addition Flashcards
Turn your own addition worksheets into printable flashcards with spaced repetition.
Addition and Subtraction Flash Cards to 20
Practice sums and differences within 20, generated from your own worksheets or notes.
Addition to 20 Math Flash Cards
Build addition to 20 flashcards from your own worksheet or notes, with spaced repetition.
Printable Addition to 20 Flashcards
Make printable addition to 20 flashcards from your own worksheet or notes.
Frequently asked questions
How many addition to 20 flashcards should a child practice at once?
Most children do well with a short set of about 10 to 15 cards per session, repeated across several days. Introduce a few new facts at a time and keep reviewing the ones already known.
Which strategies help with sums to 20?
Making a ten, counting on from the larger number and memorizing doubles all make addition within 20 faster. Cards that show the strategy on the back help learners understand why an answer is correct.
Can I print DeckOwl flashcards?
Yes, but printing requires PDF export, which is included in the Plus plan at $39 a year or $7.99 a month. The free plan lets you study in the browser with 3 generations per month.
Is there a student discount?
Students with a school email get 40% off, and no credit card is needed to start.
Keep exploring the topic
Review the main ideas visually or practice recalling them.
Quiz Maker List: Make a Quiz from Notes
Compare quiz makers, then generate your own quiz from notes, slides or PDFs.
Canvas Quiz Fill in Multiple Blanks
Draft multi-blank Canvas quiz questions from your own notes, with answers included.
Mind map assignment example
Sample branches for a mind map assignment, plus how to build your own from notes.
Biology Topic 1 Mind Map Generator
Turn your own biology topic 1 notes or PDF into an editable, explorable mind map.