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Andrew decorated 20 biscuits to take to a party. He lined them up and put icing on every second biscuit and different decorations on other biscuits. How many biscuits weren't decorated?

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# Same Length Trains

##### Stage: 1 Challenge Level:

Matt made a train with the Cuisenaire rods. It looked like this:

Katie made one too, exactly the same length, with just white rods. Hers looked like this:

Can you make some trains the same length as Matt's train, with rods of just one colour?
How many different ones can you make?

You may like to use the interactivity below to help you. Click on 'Rods' to choose your rods.

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