# Composite numbers 1 100

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Prime Numbers Rap Typography- Did this today and my kids LOVE it! Just get ready for it to be stuck in your head.

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Finding Prime & Composite numbers by using the Sieve of Eratosthenes

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FREE! Printable Factors and Prime Numbers List Factors List: 1-100 Prime Numbers List: 2-229

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100 - no, wait, 120!! Multi-step riddles for all of the numbers on the 120 chart. A great tool for daily spiraled review, or incorporate it into your 100th Day celebrations! https://www.teacherspayteachers.com/Product/First-Second-Grade-Math-120-Riddle-Cards-for-the-120-Chart-191803

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Prime and Composite Number Charts and Student Worksheets - Marcia Murphy - TeachersPayTeachers.com

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Runde's Room: Prime and Composite Numbers math journal entry

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I want to be a . . . Prime Number Hunter! To Play: Use a hundreds chart. You are competing to cross out all composite numbers and circle all the prime numbers. Prime numbers = 3 points and Composite numbers = 1 point. Player with most points wins the game!

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Students make "factor rainbows" to show their understanding of factor pairs and multiples for a whole number in the range 1-100. The lesson can be extended to discuss prime and composite numbers. CCSS 4.OA. Would you all like a printable of this?

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Graphic Organizer to help students factor numbers 1 - 100. You can utilize these to teach numerous concepts, including prime/composite, odd/even, ...

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All about prime and composite numbers. Includes 25 pages of cards from 1-100 labeled as prime or composite, 1 poster with the definitions of prime and composite, 1 poster reference sheet with the numbers 1-100 (primes are identified as prime), & 5 pages of worksheets with room for listing the factors of each number 1-100. ($) #primenumbers #compositenumbers

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