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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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Odd Times Even

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

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Walking Round a Triangle

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Two Numbers Under the Microscope

Stage: 1 Challenge Level: Challenge Level:2 Challenge Level:2

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

Do any of the bits of it match up in pairs?

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