Exam PrepYears 4–6Verbal Reasoning

Code breaking

Decode words using a letter-number or letter-letter cipher; encode words using a given code

What you'll learn

  1. 1

    Pretend you're a secret agent with a special codebook! Each letter has a secret number.

  2. 2

    What number is the letter A in our code?

  3. 3

    Crack the code: B + C = ? (B=2, C=3)

  4. 4

    Let's crack a word together: 'CAT' 🐱

  5. 5

    What is the code for 'DOG'? (D=4, O=15, G=7)

  6. 6

    Crack this secret code: 12, 15, 12. Which word is it?

  7. 7

    If A=1, what is 20?

Practise Code breaking with Whizlo

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