1. The Real Cost
When you save to make a big purchase, be sure to consider the sales tax you will have to pay.
Have you ever paid sales tax?

2. Lesson Objective Content Vocabulary Determine the unit price.
unit pricing
unit pricing
A technique that allows shoppers to compare the prices of various items.

4. Example 1
Shane Burns purchased a 34.5-ounce can of coffee for $3.99, a 2-liter bottle of cleaner for $3.98, and a dozen oranges for $3.96.
What is the unit price of the items to the nearest tenth of a cent?

5. Example 1 Answer Step: Find the unit price.
Price per Item ÷ Measure or Count
Coffee: $3.99 ÷ 34.5 = $ = $0.116 or $0.12 per ounce
Cleaner: $3.98 ÷ 2 = $1.99 per liter
Oranges: $3.96 ÷ 12 = $0.33 per orange

6. Practice 1
A local department store sells diapers in a package of 30 for $10.88.
Find the unit price per diaper.

7. Practice 1 Answer
$10.88/30 = $0.36 per diaper

8. Practice 2
Crown Foods advertises a half-gallon of ice cream as “Buy One/Get One Free.” The regular price is $5.99 for a half-gallon.
Find the unit price per half-gallon if you take advantage of the store’s special.

9. Practice 2 Answer
$5.99/2 = $3.00 per half-gallon