Percent of Change / Percent of Error

Buying a birthday card, you think the price is $4.50, but the actual price is $4. What is the percent of error?

• 50%

• 0.5%

• 12.5%

• 0.125%

Tags

CCSS.6.RP.A.3C

Mrs. Carmen's math class has 24 students, but she thought she only had 20 students. What is her percent of error?

• 4%

• 20%

• 17%

• 16 2/3%

Tags

CCSS.6.RP.A.3C

Sam thinks the cost of the book is $50, but actually, it's $56. What is Sam's percent of error?

• 10%

• 20%

• 2%

• 8.3%

Tags

CCSS.6.RP.A.3C

Mary thought the umbrella was selling for $60. When she checked out, it cost $50. What is her percent of error?

• 10%

• 20%

• 16 2/3%

• 8.3%

Tags

CCSS.6.RP.A.3C

Ann believes the cost to rent a scooter is $100, but actually, it's $150. What is Ann's percent of error?

• 50%

• 33 1/3%

• 66 2/3%

• 150%

Tags

CCSS.6.RP.A.3C

Renee thinks it will take 95 minutes to run 7 miles. She runs it in 80. What is her percent of error?

• 15%

• 15.79%

• 18.75%

• 8.42%

Tags

CCSS.6.RP.A.3C

Andy thought he would receive $60 for his birthday, but he received $40 instead. What is his percent of error?

• 50%

• 20%

• 66 2/3%

• 150%

Tags

CCSS.6.RP.A.3C

The caterer estimated that 60 people would come to the dinner, but only 45 attended. What is his percent of error?

• 15%

• 25%

• 33 1/3%

• 75%

Tags

CCSS.6.RP.A.3C

Connie thinks she types 39 words/minute, but she types 56 words/minute. What is her percent of error?

• 17%

• 43.59%

• 69.64%

• 30.36%

Tags

CCSS.6.RP.A.3C

Isabella thinks there are 430 passengers, but there are 380. What is her percent of error?

• 13.16%

• 12.5%

• 11.63%

• 50%

Tags

CCSS.6.RP.A.3C