Sales Tax
Discount
Tip
Percent of Change
Misc.
100

What is a sales tax? 

An additional cost we pay on items bought. 

100

What is a discount?

An amount taken off of a given price. 

100

What is another word for "tip?"

Gratuity

100

20.5 meters to 35.5 meters

73%; increase

100

ESTIMATE:

10% of $39.99

$4.00

200

$99 stereo; 5% tax

$103.95

200

$40 sweater; 33% discount

$26.80

200

$43 dinner; 18% tip

$50.74

200

$75.80 to $94.75

25%; increase

200

ESTIMATE:

50% of $79.98

$40

300

$46 shoes; 2.9% tax

$47.33

300

$119.50 bicycle; 15% discount

$101.58

300

$28.35 bill; 20% tip

$34.02

300

$12 to $6

-50%; decrease

300
ESTIMATE: 

20% of $49.99

$10

400

Michael takes his dog to get groomed. The fee to groom the dog is $75. There is a 6.75% sales tax. Is $80 enough to pay for the grooming? 

No, the total would be $80.06

400

A bottle of hand lotion costs $2.25. If this price represents a 50% discount from the original price, what is the original price to the nearest cent? 

$4.50 

400

The local car wash charges $16 for a full exterior wash. You want to leave a 17% tip for the person who washed your car. What is the total price? 

$18.72

400

Last year, a high school's enrollment was 465 students. This year, the enrollment is 525. What is the percent of change? 

13%; increase

400

16.1 is what percent of 70?

23% 

500

What is the amount of sales tax you pay if a video game system costs $178.90 and the tax rate is 5.75%?

$10.29

500

You want to buy a new laptop that costs $1,049. The store is offering 20% off. What is the new price of the laptop? 

$839.20

500
When you went out to dinner with your friends, you were in a hurry to leave. Your bill was $19.42. You want to leave a 20% tip, but only have a $5 bill. Is $5 enough? 

Yes, 20% of $19.42 is $3.88. 

500

In 2011, 283 million CDs were sold. In 2012, 271 million CDs were sold. What is the percent of change in CD sales from 2011 to 2012? 

-4.2%; decrease


500

The average dog owner spends $1400 on their dog per year. $360 of that is used at the veterinarian's office. What percent of the total cost is spent at the veterinary? 

25.7%