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Sieve of Eratosthenes WORKSHEET
Suitable for Year groups: Year 5
Learning objective: Use a hundred square to introduce prime and composite numbers.
Sieve of Eratosthenes WORKSHEET DESCRIPTION
This Sieve of Eratosthenes introduces prime and composite numbers using their knowledge of multiples of 2, 3, 5 and 7 in a fun and colourful way.
All worksheets are created by the team of experienced teachers at Cazoom Maths.
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Frequently Asked Questions
Your child will discover the difference between prime and composite numbers by working systematically through a hundred square. They'll use the ancient Sieve of Eratosthenes method to identify patterns and see how numbers with only two factors (1 and themselves) stand out from those with multiple factors.