She lined them up and put green icing on every second biscuit.
She put a red cherry on every third biscuit and a white chocolate button on every fourth biscuit.
How many biscuits had no decoration? How many biscuits had at least two decorations?
How many biscuits had only one decoration? Which one are they?
Did any biscuits get all three decorations?
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This activity is adapted from the NRICH task Biscuit Decorations with permission of the University of Cambridge. All rights reserved.