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Grade 6 Secret Codes Worksheet with Answers

Grade 6 (US) · Year 7 (UK) · Class 6 (India) · English

Unit 7: Going FurtherWord PuzzlesChallenge

Cracking and writing secret messages with number codes and letter-shift ciphers. This free middle school worksheet has 12 questions and a full answer key. Print it or save it as a PDF — every answer is checked by code, not guessed.

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Secret Codes

Grade 6 · English

Score___ / 12

Name

Class

Date

Learning goal: Word Puzzles

Directions: Use the words in the word bank to help you. Use the diagram to help you.

Word bank

cloudsmileraincakehappyshipfishrobotsuntiger

Word bank

cloudsmileraincakehappyshipfishrobotsuntiger
  1. 1

    Use the code A = 1, B = 2, C = 3 … Z = 26. Decode the secret word: 18-1-9-14

    A1B2C3D4E5F6G7H8I9J10K11L12M13N14O15P16Q17R18S19T20U21V22W23X24Y25Z26Code: 18-1-9-14
  2. 2

    Use the code A = 1, B = 2, C = 3 … Z = 26. Decode the secret word: 19-8-9-16

    A1B2C3D4E5F6G7H8I9J10K11L12M13N14O15P16Q17R18S19T20U21V22W23X24Y25Z26Code: 19-8-9-16
  3. 3

    Each letter of a secret word was moved 4 letters forward in the alphabet (A → E). Decode: JMWL

    AEBFCGDHEIFJGKHLIMJNKOLPMQNROSPTQURVSWTXUYVZWAXBYCZDCode: JMWL
  4. 4

    Each letter of a secret word was moved 1 letter forward in the alphabet (A → B). Decode: DBLF

    ABBCCDDEEFFGGHHIIJJKKLLMMNNOOPPQQRRSSTTUUVVWWXXYYZZACode: DBLF
  5. 5

    Use the code A = 1, B = 2, C = 3 … Z = 26. Decode the secret word: 18-15-2-15-20

    A1B2C3D4E5F6G7H8I9J10K11L12M13N14O15P16Q17R18S19T20U21V22W23X24Y25Z26Code: 18-15-2-15-20
  6. 6

    Each letter of a secret word was moved 4 letters forward in the alphabet (A → E). Decode: GPSYH

    AEBFCGDHEIFJGKHLIMJNKOLPMQNROSPTQURVSWTXUYVZWAXBYCZDCode: GPSYH
  7. 7

    Each letter of a secret word was moved 1 letter forward in the alphabet (A → B). Decode: TNJMF

    ABBCCDDEEFFGGHHIIJJKKLLMMNNOOPPQQRRSSTTUUVVWWXXYYZZACode: TNJMF
  8. 8

    Each letter of a secret word was moved 2 letters forward in the alphabet (A → C). Decode: JCRRA

    ACBDCEDFEGFHGIHJIKJLKMLNMONPOQPRQSRTSUTVUWVXWYXZYAZBCode: JCRRA
  9. 9

    Each letter of a secret word was moved 2 letters forward in the alphabet (A → C). Decode: VKIGT

    ACBDCEDFEGFHGIHJIKJLKMLNMONPOQPRQSRTSUTVUWVXWYXZYAZBCode: VKIGT
  10. 10

    Each letter of a secret word was moved 1 letter forward in the alphabet (A → B). Decode: SPCPU

    ABBCCDDEEFFGGHHIIJJKKLLMMNNOOPPQQRRSSTTUUVVWWXXYYZZACode: SPCPU
  11. 11

    Use the code A = 1, B = 2, C = 3 … Z = 26. Decode the secret word: 20-9-7-5-18

    A1B2C3D4E5F6G7H8I9J10K11L12M13N14O15P16Q17R18S19T20U21V22W23X24Y25Z26Code: 20-9-7-5-18
  12. 12

    Use the code A = 1, B = 2, C = 3 … Z = 26. Decode the secret word: 19-21-14

    A1B2C3D4E5F6G7H8I9J10K11L12M13N14O15P16Q17R18S19T20U21V22W23X24Y25Z26Code: 19-21-14

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Teacher's comments

Free printable worksheets with answer keys · aethelsystems.com/worksheets/english/6/secret_codes

Answer key (click to show)
  1. 1.rain
  2. 2.ship
  3. 3.fish
  4. 4.cake
  5. 5.robot
  6. 6.cloud
  7. 7.smile
  8. 8.happy
  9. 9.tiger
  10. 10.robot
  11. 11.tiger
  12. 12.sun

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