How many different ways can four people stand in line?
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Topics: Starter  Combinations  Investigations  Probability
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Teacher, do your students have
access to computers? 

Here a concise URL for a version of this page without the comments.
Here is the URL which will take them to the Systematic Listing activity.
Here is a solution to this problem with at least one mistake.
Can you spot the mistake(s)?
In how many ways can 5, 10 or 100 people stand in line?
In how many different ways can the letters in the word Transum be arranged?
In how many different ways can the letters in the word Google be arranged?
See the National Curriculum page for links to related online activities and resources.