Printable Binary Flash Cards
These flash cards are for students learning decimal to binary conversion, plus teachers, tutors, and homeschool families. The sheet includes binary flash cards for 0 through 31. Each card has the decimal number on one side and the binary number on the other, with boxes for cutting and a fold line down the middle.

Free printable · PDF
- 1 page
- US Letter — choose “Fit to page” for A4
- PDF, 47 KB
Free for personal, family and classroom use.
Cut out the cards, then fold each one along the middle so the decimal side and binary side line up. Use them for quick practice, matching games, or self-check drills. The boxed layout makes the cards easy to separate and keep organized.
Good for
- Decimal to binary practice
- Fold-and-check study cards
- Classroom matching game
Tip: Print on cardstock and fold before cutting for cleaner, longer-lasting cards.
5 files · PDF, DOCX, XLSX
Get every sheet: Binary Conversion Worksheet Pack
This sheet plus 4 more in one download, with the editable Word and Excel files. Decimal-to-binary and binary-to-decimal worksheets with step-by-step answer keys, a binary place value chart, a powers of two table and binary flash cards.
$5.00 USD, one-time 5 files · about $1.00 each
- Instant download
- 7-day refund
- Secure checkout by Stripe
7-day money-back guarantee. Full refund within 7 days of purchase, even after you download.

Decimal to Binary Worksheet Printable
Printable Binary to Decimal Worksheet
Printable Binary Place Value Chart
Printable Powers of Two Chart