Reverse Alphabet Code Worksheet
Number the alphabet backwards: A=26, B=25 … Z=1
- Grades 3–6
- 15 minutes
- Beginner
- 8 exercises
- Answer key included
The reverse alphabet code numbers the letters backwards — A is 26, B is 25, all the way down to Z is 1. It is a gentle first number-code for younger students because there is no shifting or memorising: just count from the end of the alphabet. Print the student PDF and answer key below, or solve the exercises on this page.
Printable PDF — free to download & print
How to use this worksheet
This code numbers the alphabet backwards: A=26, B=25, C=24, and so on down to Z=1. To encode, replace each letter with its backwards number. To decode, find the letter for each number. Use the reference strip if you get stuck.
Exercises
- 1. Encode the word: CAT
- 2. Encode the word: DOG
- 3. Encode the word: HELLO
- 4. Encode the word: SECRET
- 5. Decode: 8 11 2
- 6. Decode: 23 12 20
- 7. Decode: 25 9 26 18 13
- 8. Decode the secret message: 14 22 22 7 / 26 7 / 13 12 12 13
Full solutions are on the downloadable answer key (PDF).