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We haven't had any solutions to this investigation yet and you might have gone down many different routes. However, if you discover anything interesting, please do let us know by emailing primary.nrich@maths.org . Please don't worry that your solution is not "complete" - we'd like to hear about anything you have tried. Teachers - you might like to send in a summary of your children's work.
How can you put five cereal packets together to make different shapes if you must put them face-to-face?