These problems don't require extreme accuracy, only measuring more than, less than, or about the same as.

1. For five of the problems, take as long as you need to make your estimates, and record if you were correct on your first try at each problem.
   
   
   
   
   
   

2. For the next five problems, give yourself only 30 seconds to make your estimations, and again record if you got the correct answer on your first tries.

   
   
   
   
   
   
   

3. Analyze your responses above. How much of a factor was time in making accurate estimations?