Simplify algebraic expressions involving the four operations
Solve linear equations using algebraic and graphical techniques. Verify solutions by substitution
Activity: Credit Cards
How can you tell if a credit card number is a fake? Those seemingly random numbers on a credit card are not random, algorithms exist to detect whether or not they are genuine. If you’re building a website with an online payment system you might want to write some code to instantly detect whether or not the credit card number is a fake.