Place value

game
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More Dicey operations

Age

7 to 14

Challenge level

In these multiplication and division games, you'll need to think strategically to get closest to the target.
problem
Skeleton

Age

11 to 14

Challenge level

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

Age

7 to 14

Challenge level

In each of these games, you will need a little bit of luck, and your knowledge of place value to develop a winning strategy.
problem
An easy way to multiply by 10?

Age

7 to 11

Challenge level

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

Age

7 to 11

Challenge level

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?
problem
Football sum

Age

11 to 14

Challenge level

Find the values of the nine letters in the sum: FOOT + BALL = GAME
problem
Less is more

Age

7 to 11

Challenge level

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

Age

5 to 11

Challenge level

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

Age

7 to 14

Challenge level

The Number Jumbler can always work out your chosen symbol. Can you work out how?
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Being collaborative - Primary number

Age

5 to 11

Challenge level

Number problems at primary level to work on with others.