Sales Tax & Percent Conversion
Tip Math & Mental Shortcuts
Discounts & Deals
Unit Prices & Smart Shopping
Real-World Shopping Challenges
100

What is the decimal form of 8.875%?

0.08875

100

What is 10% of $5.40?

$0.54

100

If a jacket is 20% off, what percentage of the original price do you actually pay?

80%

100

What is the formula used to calculate the unit price of an item?

Total Price -: TotalQuantity

100

You buy two slices of pizza on a "BOGO Free" deal for a total of $4.58 after tax. How much did each slice effectively cost?

 $2.29 per slice

200

What number do you divide by to convert any percentage into a decimal for hand calculations?

100
200

What is a 20% tip on a $60.00 meal?

$12.00

200

What is the discounted price of a $65 pack of hair extensions on sale for 30% off?

$45.50

200

Option A is a 24-pack of Gatorade for $18.00.
Option B is a 6-pack for $5.10.
Which option gives you the better price per bottle?

Option A ($0.75 per bottle vs. $0.85 per bottle for Option B)

200

A BJ's / Costco bulk store membership costs $60 a year.

What is the main factor in deciding whether buying in bulk at BJ's /Costco is actually worth the membership fee?

Whether your total savings on unit prices over the year equal or exceed $60

300

What is the amount of sales tax collected on a $6.99 meal deal at Burger King given there's an $8.875 tax rate?

$0.62

300

What is 15% of $8.00?

$1.60

300

What is the sale price of a $899.99 MacBook at 25% off?

$674.99

300

You are shopping for Honey Nut Cheerios at the grocery store.

Standard Box: 12 oz for $3.60
Family Size Box: 24 oz for $8.40

Which is the better deal?

Standard Box ($0.30 for the standard vs $0.35 for the family size)

400

A coat costs $150.00 with an 8.875% sales tax rate. What is the grand total at the register?

$163.31

400

What is a 20% tip on a $80.20 restaurant bill?

$16.04

400

You find a PS5 regularly priced at $70 on sale for 36% off. What is the sale price before tax?

$44.80

400

A 32 oz bottle of body wash costs $8.00.
What is the unit price per ounce for the 32 oz bottle?

$0.25 per ounce ($8.00 รท 32 oz)

500

What is the total cost of a $50.00 restaurant meal including NYC's 8.875% sales tax before adding any tip?

$54.44

500

How much is a 15% tip for a $50 meal?

$7.50

500

A store offers a "buy one, get one 50% off" deal on shirts. You decide to buy two shirts that each originally cost $5.99. What would your total be?

$8.99

500

Box A of Takis is 18 oz for $5.40.
Box B is 4 oz for $1.80.
How much money do you save per ounce by buying Box A instead of Box B?

$0.15 saved per ounce ($0.45 - $0.30)