A series of extension projects about counting. Each question is a seemingly simple problem that introduces pupils to combinatorics. For example:
- how many ways can you make change for a pound?
- how many four digit numbers have digits that sum to 9?
- how many ways can you make change for a pound?
- how many four digit numbers have digits that sum to 9?
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A useful resource for looking at counting projects. Comes with the answers too, which is ideal for planning.
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