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Two Numbers Under the Microscope

This investigates one particular property of number by looking closely at an example of adding two odd numbers together.

Odd Times Even

This problem looks at how one example of your choice can show something about the general structure of multiplication.

Walking Round a Triangle

This ladybird is taking a walk round a triangle. Can you see how much he has turned when he gets back to where he started?

A Bag of Marbles

Age 5 to 7
Challenge Level

You could print off this sheet which has pictures of the marbles on. If you cut them out, you could move them around and group them as you work on the problem.
Is there only one marble that sparkles when rolling and is dark inside?
How do you know?