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Try it and see! You would cross out the numbers 4, 6, 8, 10, 12, The numbers circled are prime. Sieve with numbers to Answers Sieve with numbers to Answers Sieve with numbers to Answers. The worksheets below will help you to explore how the sieve of Eratosthenes works with numbers toor Skip to content To start by stating the obvious: But it also made it easier for kids worksheet notice patterns.

### Sieve of Eratosthenes worksheet | The Prime Factorisation of Me

Exponents and Radicals — Mastalio. Some of our TOP pages! Find all strange numbers. Math Salamanders Shop Looking for some fun printable math games? Need help with printing or saving? We just need to teach them what the terms mean, which is our job, by the way. I think we need to expose our kids to the accepted terminology, so they can communicate in correct mathematical language.

On our Prime Number Charts page, we have many printable lists of prime numbers. Once you have written down your list, the sieve works in this way Can you find a relationship between the number of dots on the circle and the number of steps that will ensure that all points are hit?

## Sieve of Eratosthenes worksheet

I had students not only tell me that the multiples of 11 make a diagonal line, but they explained why that happens. We have some great games for you to play in our Math Games e-books! But it should give you the idea.

I know the constant process of self reflection is good for my ability to be self-critical. Number Theory was my favourite uni subject by far. Step 2 Cross out all the multiples of the number on your list. When eliminating composites, draw a single line through each multiple in the same colour as the prime number.

You start at number 2 and write down all the numbers from 2 upwards that you want to test. Welcome to the Sieve of Eratosthenes page. The next step, then, was to throw together my own worksheet, which looks a little or exactly like this:. Looking for some fun Math Challenges These challenges are a great way to extend more able mathematicians and develop thinking and problem solving skills.

Math Salamanders Copyright Wworksheet. Try downloading from home instead. Have a look at some of our most popular pages to see different Math activities and ideas you could use with your child.

Take a look at our Prime Number page which clearly describes what a prime numbers is and what they are not. How to Print or Save these sheets Need help with printing or saving? Select the next prime number, which is 5. Stars Can you find a relationship between the number of dots on the circle and the number of steps that will ensure that all points are hit?

You can find the first prime numbers, or print out a list of all prime numbers below 10, Another of his achievements was developing a method for finding prime numbers using the so-called 'Sieve of Eratosthenes'.

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