Tim works on the following exercise:
For each radius r, find the area of a circle of that radius:
Tim gives the following answer
Identify the errors that Tim has made. How did Tim likely calculate his answers? Discuss how to correct the errors; include a discussion on the proper use of a calculator in solving Tim's exercise. Be sure to discuss the appropriate way to write the answers to the exercise
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Mathematics for Elementary Teachers with Activities (5th Edition)
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