# Learn the math behind your money

The world of finance is literally FULL of mathematical models, formulas, and systems. There's a reason that many word problems in math class involve making change, calculating interest rates, or auditing lemonade stands. There's no avoiding math when it comes to money. Fortunately, most of what the average person needs to know is straightforward. However, it is absolutely necessary to understand certain key concepts in order to be successful financially, whether that means saving money for the future, or to avoid being a victim of a quick-talking salesman.