In this video I share the Chinese multiplication chants I learned when I was eight years old and can still recite perfectly in my thirties. I walk through examples like 2×2, 7×7, and 8×9 to show how ...

Here’s a shoutout to fellow gray-hairs who learned math the “old-fashioned” way, by memorizing simple formulas along with facts about addition and multiplication. This technique is anathema in today’s ...

The Chinese multiplication hack that replaces your calculator ...