Basic Skills
Tom earned $600 last summer delivering newspapers. This summer, he earned 20% more. How much did he earn this summer?
$720
Alan deposited $300. After one year, he had $336. Find the percent increase.
12%
Alex and Ben both get a 25% raise. Alex earned $250; Ben earned $180. How much more does Alex earn than Ben this year?
$87.50
A board game was discounted by 25%, and the sale price is $45.
What was the original price?
$60
A shirt is on sale for 25% off, and the sale price is $36.
What was the original price?
$48
A gift shop buys greeting cards at $3.50 each and sells them at an 80% markup. At what price does the gift shop sell each greeting card?
$6.30
Alan had $336 at the end of Year 1 and $420 at the end of Year 2. Find the percent increase.
25%
Find the length in centimeters of the blue ribbon before Linda cut it, if the orange ribbon was 2 m and the blue ribbon was 80% of it.
160 cm
A number is increased by 10%, then increased again by 20%.
If the final value is 198, what was the original number?
150
A number is increased by 20% in the morning and then decreased by 10% in the afternoon.
The final value is 108.
What was the number in the morning before the first change?
120
The original price of a computer was $1,250. It now sells for $900. Find the percent discount.
28%
Shaun collected $925 on Day 1 and $728 on Day 2. Find the percent decrease from Day 1 to Day 2. Round to the nearest whole percent
$21%
Newspaper A had 7,600 subscribers; Newspaper B had 75% of that. Next year, B increased by 25%. Find B's subscribers next year.
7125 subscribers
A school had 500 notebooks in storage.
A class used 30% of them in October.
In November, the school used 40% of what remained.
How many notebooks were left after November?
210 notebooks left
At a school event, 40% of the students bought popcorn.
Of those students, 35% also bought a drink.
If 98 students bought both popcorn and a drink, how many total students attended the event?
700 students
Ryan had 240 CDs. Sharon had 9/2 times as many CDs. After giving 75 away, find the percent decrease in Sharon's CDs.
6.94%
Find the percent increase or decrease from Day 2 to Day 3 if Shaun collected $728 on Day 2 and $885 on Day 3. Round to the nearest whole percent
$22%
Linda cut a piece of the blue ribbon equal to 25% of its original length, 160 cm. Find the length of the piece in meters.
0.4 meters
At a festival, 60% of the visitors were adults.
Of the remaining visitors, 25% were teens, and the rest were children.
If there were 180 children, how many total visitors were at the festival?
600 visitors
A bookstore had some books in stock.
On Monday, it sold 30% of the books.
On Tuesday, it sold 25% of the remaining books.
At the end of Tuesday, there were 210 books left.
How many books were in stock originally?
400 books
Ms. Kendrick earned $3,600 per month last year. She gets a 15% raise this year. How much more does she earn each month?
$540
Yegveny bought a pair of sneakers on sale for $42; the original price was $48. What was the percent of discount?
12.5%
Ryan had 240 CDs. Sharon had 9/2 times as many CDs; she gave away 75. Find the percent decrease. Round to the nearest tenth.
6.9%
A shop charged a customer 20% sales tax on an item.
The amount of tax paid was $18.
What was the price of the item before tax?
$90
A student says, “If you increase something by 50% and then decrease it by 50%, it goes back to the original amount.” Is the student correct? Explain using a simple example with numbers.
The student is incorrect