Turn your mental math notes into flashcards with AI
Upload a PDF, slides or photos of a mental math book and get flashcards you can review with spaced repetition.
Why build your own set from the source
Quick mental arithmetic improves with short, daily repetition, and a set built from the exact pages you are working through keeps that routine simple. Students who want mental math flashcards by Nicholas McNamara can upload their own copy of the material or their class notes and get cards generated from that text, so the questions match what they are studying.
- Upload a PDF, DOCX, PPTX, notes or a photo of a page
- Get flashcards with spaced repetition scheduling
- Practice with quizzes that include explanations
- Export to Anki, CSV, PDF or DOCX on the Plus plan
Starts from your own pages
Upload PDFs, DOCX or PPTX files, plain notes, or photos of pages. Text in images is read with text recognition.
Spaced repetition built in
Cards come back at the intervals where you are most likely to forget them, so practice time goes to the techniques you still miss.
Quizzes and mind maps too
Turn the same material into multiple choice, true/false or short answer quizzes with explanations, or into a mind map of methods.
How it works
Upload your material
Add the PDF, slides, notes or photos of the pages you want to practice.
Generate flashcards
DeckOwl creates question and answer cards from the text, which you can review before studying.
Study on a schedule
Review in the browser each day, and the spaced repetition schedule decides which cards come up next.
Spaced repetition does the scheduling. Cards you find easy appear less often, and cards you miss return sooner, which suits techniques like multiplying by 11 or finding percentages in your head. The free plan gives you 3 generations per month and lets you study in the browser.
Exporting to PDF, DOCX or Anki is part of the Plus plan at $39/year or $7.99/month, and students get 40% off with a school email. No credit card is needed to start.
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Frequently asked questions
How often should I practice mental math?
A short session every day works better than occasional long ones. Keep each session to a few minutes and focus on one technique at a time.
Which mental math techniques should I learn first?
Start with multiplying by 9 and 11, finding 10 and 25 percent of a number, and subtracting from 1000 using complements. These cover many everyday calculations.
Can I export these flashcards to Anki?
Yes, export to Anki is included in the Plus plan, along with PDF, DOCX and CSV export. The free plan lets you study flashcards in the browser without exports.
Do I need a credit card to try DeckOwl?
No. You can start on the free plan with 3 generations per month without adding a credit card.
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