In the real world, you will see decimals most often in situations involving money. Pretty much every price tag has a decimal. Let's take a look.
You need to put some gas in your car. Regular gasoline is $/gallon. You only have a $ bill on you. How many gallons can you buy?
At Bonita’s Breakfast Emporium, a small latte is and a bagel with cream cheese is $ (including tax). If you give the clerk $ to buy both, how much change will you receive?
A 12-pack of ShmooHoo costs $10.50. What is the unit price (or price per bottle)?
You need to buy 5 notebooks that cost $0.85 each. How much will this cost?
If you buy two movie tickets at $8.75 each, what will your change be from $20?