8.1: How Long Are These Pencils?
 Estimate the length of each pencil.
 How accurate are your estimates?

For each estimate, what is the largest possible percent error?
Let’s check how accurate our measurements are.
For each estimate, what is the largest possible percent error?
A wood floor is made by laying multiple boards end to end. Each board is measured with a maximum percent error of 5%. What is the maximum percent error for the total length of the floor?