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Age 11 to 14
Challenge Level 
How could you estimate each of the quantities?
What extra information might you need to find out?
For some questions, you may need to be more accurate in your estimations than others to arrange the list in order of magnitude.
What extra information might you need to find out?
For some questions, you may need to be more accurate in your estimations than others to arrange the list in order of magnitude.
