Percent error
Find the error, divide it by the actual value, and write it as a percent.
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Lena estimates a length as 120 cm. The actual length is 100 cm. What is the percent error? Write the percent only.
Answer: 20
Sam estimates a length as 27 cm. The actual length is 30 cm. What is the percent error? Write the percent only.
Answer: 10
Ava estimates a length as 40 cm. The actual length is 50 cm. What is the percent error? Write the percent only.
Answer: 20
Tip: Find the error, divide it by the actual value, and write it as a percent.
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