Home / Worksheets / Grade 8 / Math / Percent Error Practice Worksheet

Percent Error Practice Worksheet

A Grade 8 math worksheet focusing on understanding and calculating percent error with real-world examples.

Grade 8 Math Percents, Ratios, and RatesPercent Error
Use This Worksheet

Includes

3 Short AnswerFill in the BlanksMultiple ChoiceTrue / False

Standards

CCSS.MATH.CONTENT.7.RP.A.3

Topics

mathpercent errorgrade 8percentages
8 sections · Free to use · Printable
← More Math worksheets for Grade 8

Percent Error Practice

Name:

Date:

Score:

Read each question carefully and calculate the percent error. Round your answers to two decimal places where necessary.

1. A student estimates the weight of a textbook to be 4 pounds. The actual weight of the textbook is 3.5 pounds. What is the percent error of the student's estimate?

2. Percent error is calculated using the formula: (|Observed Value - Actual Value| /  ) * 100%.

3. A positive percent error means the estimated value was   than the actual value.

4. The actual length of a rope is 20 feet. A measurement states the length is 22 feet. Which of the following is the correct percent error calculation?

a

((22 - 20) / 22) * 100%

b

((20 - 22) / 20) * 100%

c

((22 - 20) / 20) * 100%

d

((20 - 22) / 22) * 100%

5. A scientist measures the boiling point of a liquid to be 98°C. The accepted boiling point of the liquid is 100°C. Calculate the percent error.

6. Percent error can sometimes be a negative value.

T

True

F

False

7. A recipe calls for 2 cups of flour. You accidentally use 2.2 cups. What is the percent error in your measurement?