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Plants

Three children are going to buy some plants for their birthdays. They will plant them within circular paths. How could they do this?

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Gran, How Old Are You?

When Charlie asked his grandmother how old she is, he didn't get a straightforward reply! Can you work out how old she is?

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More Pebbles

Have a go at this 3D extension to the Pebbles problem.

Count the Digits

Stage: 1 and 2 Challenge Level: Challenge Level:1
It might help to ask someone else to check your counting!