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It Must Be 2000
Age 7 to 11
Challenge Level 
Why do this problem?
This activity
is a good source of ideas for number investigations.
It was originally set in the year $2000$ so was
particularly appropriate then but of course you could change it to
suit the year you are in now.
Key questions
What could you do with this number?
What does it look like to have $2000$ objects, cubes,
counters, etc.?
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