My daughter (almost 8) has shown a real interest in mathematics (she's spent the past few nights looking through and asking endless questions about my HS calculus book), and I was wondering if anyone ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Danica McKellar is best known for her role ...

Hear that change jingling in my pocket? Good. I have two little questions for you. I have a quarter, a dime and a nickel. How much money DO I have? I have three coins. How much money COULD I have? The ...