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This "Back to School Code 1" worksheet challenges students to crack a secret code using a simple number substitution cipher.

$Back to School Code 1 worksheet featuring a number-to-letter cipher puzzle for students to decode a secret message.$

Back to School Code 1 worksheet featuring a number-to-letter cipher puzzle for students to decode a secret message.

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$Secret Code Math Worksheet for 1st - 3rd Grade | Lesson Planet$