Forget the traditional, cumbersome method and use this trick: to multiply a number by 5, divide by 2, and move the decimal point one decimal place to the right. SO, if, say, you had the number 8,600 ...

All images courtesy of Two Kids and a Coupon Math is so cool, it gets its own holiday! Not only does March 14 celebrate this magic number, you're allowed to have dessert. So, what is Pi Day? This is a ...

A classic riddle about a hotel bill uses misleading math to create a paradox. This type of intentional misdirection is a common technique used in magic tricks. Here’s a riddle my father told me when I ...