G7: Lesson 2.7 - Percent Error

Fill in the Blanks

A jar of marbles should contain 100 marbles. The jar actually has 99 marbles. What is the percent error to the nearest hundredth of a percent?

Multiple Choice

Why is it important to understand percent of error when solving real-world problems involving measurements?

• It helps us estimate the accuracy of our results.

• It allows us to ignore mistakes in calculations.

• It is only used in advanced mathematics.

• It makes calculations more complicated.

Multiple Choice

Suppose 800 people are estimated to attend a football game, but the actual attendance is 1,000 people. What is the amount of error in the estimate?

• 200

• 800

• 1,000

• 1,800

Open Ended

Exit Ticket: After completing Module 2, what is one thing you learned about percent problems that you found interesting or useful?