There are few real math whizzes in the world. As the old saying goes, how often are you going to trot out even high school algebra in most of what you do? But people use regular arithmetic all the ...

As a species, we tend to remember inventions as the things that changed history. Fire, agriculture, architecture, the printing press, electricity, all of these led to immense leaps forward for ...

Interest is the amount of money you must pay to borrow money in addition to the loan's principal. It's also the amount you are paid over time when you deposit money in a savings account or certificate ...