Get a thorough explanation of sales tax, and practice with some fun kids' products.

Nobody wants to pay sales tax, but 7th grade is as good a time as any to learn it! Add some favorite baseball game snacks for fun and get cracking.

How can you tell if you’re getting a good deal? By calculating the unit price, of course! Try it with these unit price problems.

Put your math skills to a real-life test by finding the best deal for your money.