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Overview
CAEC Math
Number Sense
5. Financial Mathematics: Solving Problems with Fractions, Decimals, and Percentages
5.9 Unit price & best buys
Unit Price and Best Buys
Learn how to calculate unit price and compare packages of different sizes to figure out which one is really the best buy.
What You'll Learn
Calculate unit price using the formula \( u = \dfrac{p}{q} \), where \(p\) is total price and \(q\) is quantity.
Compare packages of different sizes by converting each price to the same unit of measure before comparing.
Identify the best buy as the option with the lowest unit price, not the lowest total price.
Apply unit price reasoning to real situations like grocery shopping, bulk packs, and price tags per ounce or per item.
Recognize that unit price is a rate, so it can be represented as the slope of a line relating total cost to quantity.
This Unit Includes
Learning resources
TEST-PREP Curriculum Aligned