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Tangrams

Can you make five differently sized squares from the tangram pieces?

Baked Bean Cans

Is there a best way to stack cans? What do different supermarkets do? How high can you safely stack the cans?

Halving

These pictures show squares split into halves. Can you find other ways?

Six to Four

Age 5 to 7 Challenge Level:

Move four sticks so there are exactly four triangles.

Sticks