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By clicking on three of the numbers at the top of the page you can make these easier or harder - why not show how clever you are by making them as hard as possible?

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You can view this resource and all our others online absolutely free but we do ask you to Register with your email address beforehand. (If you are already registered, please )

You can also print up to 5 sets of worksheets as well as play all the fun maths games for a whole week. (No card details needed)

 Choose 3 Numbers to Add

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