Grade 7 Code Breaking Challenge

Engage in critical thinking and problem-solving with this Grade 7 Code Breaking Challenge, featuring various ciphers and puzzles.

Grade 7 Math Math PuzzlesCode Breaking

Use This Worksheet

Includes

Fill in the Blanks2 Short AnswerMultiple ChoiceMatchingTrue / False

Standards

CCSS.MATH.CONTENT.7.SP.B.4CCSS.MATH.CONTENT.7.EE.B.3

8 sections · Free to use · Printable

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Grade 7 Code Breaking Challenge

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Welcome, Code Breaker! This worksheet will test your skills in deciphering secret messages. Read each question carefully and use your problem-solving abilities to crack the codes.

1. In a Caesar cipher with a shift of 3, 'A' becomes 'D'. If the coded message is 'JRQJ', the original message is .

2. Using a Caesar cipher with a shift of 5, the word 'HELLO' would be encoded as .

3. The following message was encoded using a simple substitution cipher: 'Xlm hfghqf rk lxf.' If 'X' represents 'T' and 'l' represents 'h', what is the decoded message?

4. What word does the following Morse code represent? '-- --- .-. ... .'

CODE

MORSE

SECRET

MESSAGE

5. Match the Atbash cipher encoded word with its decoded word.

a. ZKVI

1. WORD

b. DLIW

2. LOVE

6. The Pigpen cipher uses a grid system to substitute letters with symbols.

True

False

7. Create your own simple code or cipher and encode the message 'MATH IS FUN'. Describe how your code works.