Stage: 3 Short Challenge Level: 
In how many ways can you give change for a ten pence piece?
If you liked this problem, here is an NRICH task which challenges you to use similar mathematical ideas.
This problem is taken from the UKMT Mathematical Challenges.
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Visualising. Games. Combinations. Money. Counting. Combinatorics. Calculating with percentages. Permutations. Addition & subtraction. Number - generally.
Published March 2009.
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