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There are to be 6 homes built on a new development site. They could be semi-detached, detached or terraced houses. How many different combinations of these can you find?

Number Squares

Start with four numbers at the corners of a square and put the total of two corners in the middle of that side. Keep going... Can you estimate what the size of the last four numbers will be?

I'm Eight

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

Subtraction Slip

Age 5 to 7
Challenge Level

What do you notice about the numbers involved?
What might the - sign tell you?
Where did the girl in the video make a slip-up?
What should she have done instead?