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  • Early Years Foundation Stage

Making 11p

Age 11 to 14
ShortChallenge Level Yellow star
  • Problem
  • Solutions

5p, 2p and 1p coins (or a mixture of any or all of these) are used to make a total of 11p. In how many different ways can this be done?
 
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.
You can find more short problems, arranged by curriculum topic, in our short problems collection.

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How many positive integers less than or equal to 4000 can be written down without using the digits 7, 8 or 9?

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The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.

NRICH is part of the family of activities in the Millennium Mathematics Project.

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