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Pizza Portions

My friends and I love pizza. Can you help us share these pizzas equally?


How can you cut a doughnut into 8 equal pieces with only three cuts of a knife?


Grandma found her pie balanced on the scale with two weights and a quarter of a pie. So how heavy was each pie?

Snake Coils

Age 7 to 11
Challenge Level
This diagram for the five coils might help you to imagine what is happening.
Each set of circles should be the same size and on top of each other, but we could not show that in a diagram.