There are **9** NRICH Mathematical resources connected to **Metric and imperial units**, you may find related items under Measuring and calculating with units.

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My measurements have got all jumbled up! Swap them around and see if you can find a combination where every measurement is valid.

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These Olympic quantities have been jumbled up! Can you put them back together again?

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The triathlon is a physically gruelling challenge. Can you work out which athlete burnt the most calories?

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Could nanotechnology be used to see if an artery is blocked? Or is this just science fiction?

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Can you use this information to estimate how much the different fruit selections weigh in kilos and pounds?

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Grandpa was measuring a rug using yards, feet and inches. Can you help William to work out its area?

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Use this information to work out whether the front or back wheel of this bicycle gets more wear and tear.

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A security camera, taking pictures each half a second, films a cyclist going by. In the film, the cyclist appears to go forward while the wheels appear to go backwards. Why?