I used to listen and watch this guy, Scott Flansburg when I was a high school math teacher a long time ago. He does have a special, unique gift for being able to perform math calculations quickly and precisely. The best thing I like about Scott is that he has such a passion for math and sharing his knowledge with others.
It’s not all about memorizing tables, its also about performing calculations.
For more information check out Scott’s website at scottflansburg.com