A TikTok video of a novel, ancient multiplication method has gone viral. While the user, jesslouisec, calls the method Japanese multiplication and some mathematicians say it’s “Vedic multiplying,” its ...

When I first saw this Japanese multiplication method, I just couldn’t believe it. Then I tried it and it works perfectly, but still can’t understand how it works—or how anyone found this method. You ...

Students in some local elementary schools are learning a completely different way of doing multiplication. It’s a technique that many parents can’t understand. It’s called lattice multiplication. The ...

This summer, battle lines were drawn over a simple math problem: 8 ÷ 2(2 + 2) = ? If you divide 8 by 2 first, you get 16, but if you multiply 2 by (2 + 2) first, you get 1. So, which answer is right?

When Julie Selsberg’s elementary school son and daughter have math homework, Selsberg reads instructions on worksheets and learns the math before helping her kids. “We do follow how they do it first ...

Montgomery algorithms represent a transformative advancement in the computation of modular arithmetic, specifically designed to bypass the costly division steps inherent in traditional methods. By ...

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 ...