Written Calculation

problem
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I'm Eight

Age

5 to 11

Challenge level

1 out of 3

Find a great variety of ways of asking questions which make 8.
problem
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Trebling

Age

7 to 11

Challenge level

1 out of 3

Can you replace the letters with numbers? Is there only one solution in each case?
problem
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Division Rules

Age

7 to 11

Challenge level

1 out of 3

This challenge encourages you to explore dividing a three-digit number by a single-digit number.
problem
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All the Digits

Age

7 to 11

Challenge level

2 out of 3

This multiplication uses each of the digits 0 - 9 once and once only. Using the information given, can you replace the stars in the calculation with figures?
game
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More Dicey Operations

Age

7 to 14

Challenge level

1 out of 3

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