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These squares have been made from Cuisenaire rods. Can you describe the pattern? What would the next square look like?

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Making Boxes

Cut differently-sized square corners from a square piece of paper to make boxes without lids. Do they all have the same volume?

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A Right Charlie

Can you use this information to work out Charlie's house number?

One Wasn't Square

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

What can you deduce from what Jamie says?
Making a list of square numbers might help.
You could try finding pairs of numbers that make squares.
All the numbers, including the squares, are less than $40$.