If you want to better understand your financial life, it's time to get out your calculator and dive right in to calculating four important numbers that reveal almost everything you need to know ...

Though generations of schoolchildren have cursed arithmetic, the world was a much more inconvenient place without it. Before the advent of modern arithmetic in the 13th century, basic calculations ...

Calculate without the Calculator app Our last tip has nothing to do with the Calculator app, but is something that every iPhone user should know. Just like on the Mac, the iPhone has a basic ...