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A Bag of Marbles

Use the information to describe these marbles. What colours must be on marbles that sparkle when rolling but are dark inside?

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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.

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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?

Odd Times Even


If you are stuck, try looking at your model in different ways to see if that helps.

Think about what you know about the properties of odd and even numbers.