Printable Binary Secret Message Worksheet
This printable binary worksheet is for students learning how to read binary code with an ASCII chart. It includes a name line, a date line, and a two-page decoding page with problems arranged in columns for Problem and Answer. Each row gives a binary word to decode, such as CODE, BYTE, Hello, and other short message words.

Free printable · PDF
- 2 pages
- US Letter — choose “Fit to page” for A4
- PDF, 96 KB
Free for personal, family and classroom use.
Have students use the ASCII chart to translate each binary string into text and write the answers in the blanks. Then check their work with the answer key, which lists each problem number, the binary code, and the decoded word. It works well for class practice, extra review, or a simple decoding activity at home.
Good for
- Binary decoding practice
- ASCII chart review
- Classroom warm-up activity
Tip: Print both pages back to back so students can check their answers after finishing.
4 files · PDF, XLSX, DOCX
Get every sheet: Binary Code Printables
This sheet plus 3 more in one download, with the editable Excel and Word files. Printable ASCII binary chart (A–Z, a–z, 0–9), binary-to-decimal worksheets with answers, a secret-message decoding activity and a binary bracelet design sheet.
$5.00 USD, one-time 4 files · about $1.25 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.

Printable ASCII Binary Chart
Printable Binary to Decimal Worksheet
Printable Binary Bracelet Design