Get your timer out and see whether you can remember the golden rule from grade school math class.

Add Yahoo as a preferred source to see more of our stories on Google. It seemed that many were quick to figure out the equation, while others definitley struggled. You’re never too old to learn ...

This simple-looking equation has left many people debating the correct answer online. Can you solve it?

Sometimes we face problems that seem like they'll never go away or get better, but would you believe that math could actually hold the key to making your life better? Sounds tricky, but it's a lot ...