Understanding Cost Problems: Price, Quantity, and Total Cost
What You'll Learn
Every time you go shopping, you use mathematics! In this lesson, you'll learn how to solve problems about buying things, finding the best deals, and managing money like a smart shopper.
The Three Important Parts of Shopping
1. Price (P)
This is how much ONE item costs. You'll see words like "each," "per item," or "per unit."
Example: An apple costs $2 each
2. Quantity (Q)
This is how many items you're buying. It's always a number of things.
Example: You buy 5 apples
3. Total Cost (C)
This is the total amount you pay for all the items together.
Example: You pay $10 total