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1001 Math Problems
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These resources have been reviewed and selected by STEM Learning’s team of education specialists for factual accuracy and relevance to teaching STEM subjects in UK schools.
Coin problem
This puzzle is about factors and multiples. A purse contains an unlimited supply of 5 cent and 8 cent coins. A candy store with 6 items will only accept exact change. The challenge is to find which items can be purchased. There is an extension activity for making the numbers from 1 to 50 and then finding the largest number that can’t be made. This resource is suitable for Key Stage 3.
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Coin problem (activity sheet) 1.48 MB -
Coin problem (answer sheet) 1.9 MB
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