Discounts
Original price-discount
Tax/Markup/Gratuity
purchase price x tax rate
Percent Change
amount of change/original
multiplied by 100
Simple Interest
I=prt
Interest=principal x rate(decimal) x time
Percent Error
Approximate amount-Exact amount/Exact amount
100

The cake store is having a 10 percent off sale on all of its cakes. If the cake you want regularly costs $6, how much would you save with the discount?

What is 60 cents?

100

How much tax would you pay on a pair of shoes that cost $39 if the sales tax is 7%?

What is $2.73?

100

A Fortnite skin is marked down from $25 to $19. What is the percent of change?

What is -24%?

100

If you invest $200 at a 10% interest rate, how much money will you have after 3 years?

What is $260?

100

A birthday party host planned for 20 people, but 17 actually attended. What is the percent error?

What is 17.6%?

200

At Stop & Shop, a $12 case of Coca Cola is 20% off. What is the discount?

What is $2.40?

200

Game Stop bought a video game for $30. They markup the game 90%. How much is the selling price of the video game?

What is $57?

200

A jumbo-sized movie popcorn cost $8.20 in 2000, and $10.65 in 2024. What is the change in percent?

What is 29.9%?

200

You deposit $572.34 in an account that pays 4.5% interest. How much interest do you earn after 6 years?

What is $154.53?

200

The distance around a lake is 4 miles. When clocking it with an odometer, the distance was 3.8 miles. What is the percent error?

What is 5%?

300

In a candy store, a $5.00 jar of candy is labeled, "50% off." What is the sale price?

What is $2.50?

300

Your Pulse drink was AMAZING, and it cost $5. You want to leave a 25% tip for the clerk. What will your total bill be?

What is $6.25?

300

A baby weighs 18 pounds at her four-month appointment. Six months later, she weighs 24 pounds. By what percentage did the baby's weight increase?

What is 33.3%?

300

A $5,600 deposit for 45 years at a simple interest rate of 3%. What is the interest earned?

What is $7,560?

300

Zoe feels like she walked 20 miles. But she actually only walked 16 miles. What is Zoe’s percent error?

What is 25%?

400

A jacket from Macy's is normally $40. You have a coupon for 25% off. What is the sale price?

What is $30?

400

Your Whitey's malt costs $7.99. If you want to leave a 20% tip, how much should you leave rounded to the nearest dollar?

What is $10?

400

The Gateway Newspaper had 1,620 subscribers last year. This year, after the paper was bought by a new company, it had 1,200. What is the percent of decrease? Round to the nearest whole percent.

What is 26%?

400

A $4,000 deposit for 4 years at an interest rate of 2%. What is the amount of interest earned? 


What is $320?

400

Jasmine was expected to get $150 for her bonus, but she only got $100. What was the percent error?

What is 50%?

500

Casey's is selling candy bars, two for $3. Kyle has a coupon for 20% off. How much will he save?

What is .60 cents?

500

You go out to eat with your friends at the Thai Town Cafe. Your bill costs $17.67. Because of her excellent service, you want to tip your waitress 20%. How much is the tip you leave her?

What is $3.53?

500

Growing up, you lived in a tiny town. When you left for college, the population was 840. You recently heard that the population has grown to 950. What is the percent increase? Round to the nearest whole percent.

What is 13%?

500

How much will you have in your bank account after 4 years if you invest $3,000 at an 8% interest rate?

What is $3,960?

500

Maya counts 55 passengers on the bus. There were only 50 passengers on the bus. What is Maya’s percent error?

What is 10%?