Integer Subtraction Cipher Wheel
Written by Adi Ackerman, Head Teacher
"Integer Subtraction Cipher Wheel" is written for 7th Grade (Ages 12-13), and it covers Common Core 7.NS.A.1.C. A 6th grader who is already steady on math puzzles can use it too, and an older student can use it as a short review.
7th grade math worksheet: subtract integers to get a shift, then move letters around a cipher wheel to decode a message. Answer key included. Part of our code breakers math puzzles collection. Aligned to Common Core standards.
How do I use this worksheet?
Use these as a change from drill after teaching integer subtraction. A wrong difference gives a wrong letter, so students notice and fix errors.
What students will practice
- Students will find differences of integers and use each one as a shift.
- Students will move clockwise for a positive shift and counterclockwise for a negative shift.
- Students will decode letters and copy them into a message.
Curriculum Links
Common Core State Standards
The Number System · 7th Grade
Standard: Understand subtraction of rational numbers as adding the additive inverse, p - q = p + (-q). Show that the distance between two rational numbers on the number line is the absolute value of their difference, and apply this principle in real-world contexts.
View all 7.NS.A.1.C worksheets →Find this in the curriculum
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FAQ
How do I use this code breakers worksheet?
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Use these as a change from drill after teaching integer subtraction. A wrong difference gives a wrong letter, so students notice and fix errors.
What does this worksheet teach?
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Subtract integers to get a shift, then move letters around a cipher wheel to decode a message. The directions on the page read: Find each difference. That is the shift. From the coded letter on the wheel, move that many spaces. Write the letter you land on and copy it into the message. An answer key is included.
Can I use this code breakers worksheet for homeschool or classroom?
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Yes, both. We made it for 7th grade math puzzles, and it works the same at home or at school. At home, a student can work through it alone and then go over it with you, which shows quickly what is solid and what needs another look. In class it works as independent practice, homework or a warm-up, and you can print one copy or a full set.
What is a math code breaker?
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A puzzle where each answer points to a letter or number, and the answers together reveal a message or code.
What integer skills do these cover?
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Subtracting integers on three pages, integer word problems on one and a letter sudoku with mixed operations on one.
Do they have answer keys?
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Yes, all 5 do.
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Worksheet Details
| Grade | 7th Grade |
| Subject | Math |
| Topic | Math Puzzles |
| Standard | 7.NS.A.1.C |
| Pages | 1 page |
| Difficulty | Medium |
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