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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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Curious Number

Can you order the digits from 1-3 to make a number which is divisible by 3 so when the last digit is removed it becomes a 2-figure number divisible by 2, and so on?

Factor Track

Stage: 2 and 3 Challenge Level: Challenge Level:2 Challenge Level:2

You might try writing down all factors of the numbers in the green squares.
How will you know which routes you have tried?