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 ...

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 ...