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This tricky challenge asks you to find ways of going across rectangles, going through exactly ten squares.

This challenge is about finding the difference between numbers which have the same tens digit.

Have a go at balancing this equation. Can you find different ways of doing it?

Can you find pairs of differently sized windows that cost the same?

Use the information on these cards to draw the shape that is being described.

How do you know if your set of dominoes is complete?

Use a single sheet of A4 paper and make a cylinder having the greatest possible volume. The cylinder must be closed off by a circle at each end.

For this task, you'll need an A4 sheet and two A5 transparent sheets. Decide on a way of arranging the A5 sheets on top of the A4 sheet and explore ...

You will need a long strip of paper for this task. Cut it into different lengths. How could you find out how long each piece is?

The scientists need your help to work out how many Cubies live on a small island! Use the cards to gather all the information you need.