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Secret Codes

KHOOR is HELLO with every letter moved 3 along. Crack shift codes, write your own secret messages and turn letters into numbers.

Codes, Binary & Robots · Grades 1–4 · 8 levels · Free

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8 levels

  1. Shift by one or two
  2. Bigger shifts
  3. Write a secret message
  4. Past Z and back to A
  5. Find the shift
  6. Letters as numbers
  7. Every code mixed up
  8. Code race, timed

What it practises

  • Letters as Numbers (A = 1)
  • Shift Codes

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