Percent of a number
Interest I=PRT
Percent Increase, Decrease, Error, Markup and Markdown
Comparing Percentages
Percent to Fractions
100

What is  25% of 80?

What is 20

100

Joel borrowed money from his parents for a down payment on a car. If he borrowed $5000 at a 2.5% rate for 3 years, how much total will he owe his parents?

What is I=5000(.025)(3) 

$375+$5000= $5,375.00

100

This year there were 90 kids enrolled in swim lessons. Last year there were 120 kids in swim lessons. What was the percent of change?

What is 25% decrease

100

In a school, 70% of the 6th graders (out of 90) and 60% of 7th graders (out of 120) like soccer. Which grade has more students who like soccer?

What is 7th grader has more

100

Convert 25% to a fraction?

What is 25/100 or 1/4

200

What is 60% of 150?

What is 90

200

How long will it take for $500 to earn $45 in interest at a simple interest rate of 3%?

What is 45=500(.03)T 

3 years

200

What is the percent markup for an item that was bought wholesale for $40 but sold retail for $65?

What is 62.5% markup

200

two students, Mya and Jordan, took different math test.

Maya got 45 out of 60 questions correct.

Jordan got 36 out of 50 questions correct.

Who had the higher score, and by how many points?

What is Mya had the higher score by 3 points

200

Convert 80% to a fraction?

What is 80/100 or 4/5

300

What is 87.5% of 160

What is 140

300

How much interest will Staci owe if she borrows $1200 at 3.5% for 3 ½ years?

What is I=1200(.035)(3.5)

 $147

300

In 2012, 54 students graduated with high honors. In 2011, 49 students graduated with high honors. Find the percent change in the number of students.

What is 10.2% increase

300

Class A raised $360 out of their 600 goal.

Class B raised $420 out of their 700 goal.

Who raised a higher percentage of their goal and by how many points?

What is both raised the same percentage 60%

300

A student completed 75% of her homework assignments What fraction of the assignments did she complete?

What is 75/100 or 3/4

400

How much of a discount will Jonna have if she buys a $84.50 coat on sale for 30% off?

What is $25.35

400

Haley went to dinner with a group of her friends. Their bill before tax was $45.51. If they left a tip of 20%, what was the amount of the tip?

What is $9.10

400

A store sells a backpack at a 30% markup. The selling price is $52. What was the original prices?

What is $40

400

Brand A peanut butter is 40% off its original price of $5.00.

Brand B is 30% off its original price $6.00.

Which brand has the greater dollar discount and by how much?

What is Brand A has the greater discount by $0.20

400

A soccer player made 60% of her shots during practice. What fraction of her shot did she not make?

What is 40/100 or 2/5

500

A laptop is priced at 1,200. During a sale, it is marked down by 15% and then a coupon gives an additional 10% off the sale price. What is the final price?

What is $918.00

500

Haley went to dinner with a group of her friends. Their bill before tax was $45.51. If sales tax is 8.5%, how much will the total bill be, including tax and tip? (Tip: Sales tax is figured on the amount of the bill NOT including the tip.)

What is $58.47 or $58.48

500

A scientist estimates that a chemical solution contains 82.5 grams of a substance. After conducting a precise lap test, it is found that the actual amount is 68 grams. What is the percent error in the scientist's estimate? Round to the nearest cent

What is 21.32%

500

Store A offers a 25% discount on a backpack originally priced at 80.

Store B offers a $30 discount on the same backpack.

Which store offers the better deal, and by how much?

What is store B offers a better deal  by 20 dollars

500

At the school science fair, 18 out of 25 students presented a project. What percent of the students did not present a project?

What is 28%

M
e
n
u