Countdown Challenge: Prime & Composite Numbers: Sieve of Eratosthenes

In this prime and composite worksheet, students use the Sieve of Eratosthenes to identify prime numbers. They identify given factors in a list. This one-page worksheet contains a list of 100 numbers. Following a given process, students identify 25 prime numbers.

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Resource Details

Grade
7th - 8th
Subjects
Math
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Resource Types
Worksheets
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Usage Permissions
Fine Print: Educational Use