Among the oldest known math texts is a single line that has quietly puzzled scholars for centuries. On its surface, it works ...

To do the method, begin by writing the two numbers you want to multiply at the top of two columns. In the left column, you ...

For people living in the ancient city of Babylon, Marduk was their patron god, and thus it is not a surprise that Babylonian astronomers took an interest in tracking the comings and goings of the ...

Add zero and one to get one, one and one to get two, one and two to get three, two and three to get five. Most of us know this—that each successive number is the sum of the two numbers that came ...

Scientists have long believed inroads in elementary calculus were developed in the 14th century. At that time in history, new concepts were developed to investigate a wide range of problems, one of ...

This story is part of WTOP’s continuing coverage of people making a difference in our community, reported by Stephanie Gaines-Bryant. Read more here. Some of the same items the Mayans would have used ...

The following is adapted from the introduction to “The Riddler: Fantastic Puzzles from FiveThirtyEight,” published by W. W. Norton & Co. It is in stores today! The world’s oldest collection of math ...