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### Skeleton

Amazing as it may seem the three fives remaining in the following `skeleton' are sufficient to reconstruct the entire long division sum.

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Skeleton

Amazing as it may seem the three fives remaining in the following `skeleton' are sufficient to reconstruct the entire long division sum.

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More Less is More

In each of these games, you will need a little bit of luck, and your knowledge of place value to develop a winning strategy.

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An Easy Way to Multiply by 10?

Do you agree with Badger's statements? Is Badger's reasoning 'watertight'? Why or why not?

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Napier's Bones

The Scot, John Napier, invented these strips about 400 years ago to help calculate multiplication and division. Can you work out how to use Napier's bones to find the answer to these multiplications?

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Less is More

Use your knowledge of place value to try to win this game. How will you maximise your score?

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Digit Addition

Try out this number trick. What happens with different starting numbers? What do you notice?

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The Number Jumbler

The Number Jumbler can always work out your chosen symbol. Can you work out how?