How did I not know about this? A math whiz I’m not. But a math whiz wannabe? That’s me!
Michele and I recently saw the movie Gifted. Early on in the story the protagonist demonstrated some crazy math skill as a first-grader. Then she explained it was a something-something system.
Recently, talking with my math-whiz and handball-partner friend, Hal, the subject came up and I was motivated to go back and revisit this reference. I found the Trachtenberg System of Basic Mathematics. What a wonderful practical application of higher mathematics to a toolbox of handy widgets useful every day.