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Prime or composite

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Prime or composite — free printable Grade 6 math worksheet

This worksheet challenges middle school students to distinguish between prime and composite numbers through a variety of problems. Teachers can use it to reinforce number theory concepts and enhance students' critical thinking about factors and divisibility. Ideal for grade 6 classrooms, it supports skill development in identifying prime numbers and understanding their properties.

Learning objectives

  • Identify whether a given number is prime or composite.
  • Explain the reasoning behind classifying numbers as prime or composite.
  • Apply divisibility rules to determine the factors of numbers.

How to use this worksheet

  1. Select “Sign in / Sign up to download”, then sign in with Google or email to get the PDF from KiwiBee Printables.
  2. Print at home or in class for Middle School; it's no-prep, with no extra materials needed.
  3. Hand it out as classwork, homework, or a quick warm-up.

Good for

ClassworkHomeworkWarm-upCentersSmall groups

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