How to Do Rapid Mental Multiplications the Traditional Way (with Mental Calculator Sam Engel)

Instructional Videos

• 4/21/25

How to Do Rapid Mental Multiplications the Traditional Way (with Mental Calculator Sam Engel)

How to do multiplications like a professional human calculator!

Japanese footage 7:07

How to Do Rapid Mental Multiplications using Cross-Multiplication (with Mental Calculator Sam Engel)

The Battle, Part 1: Calculation League Season 2 --- Wenzel vs. Aaryan (narrated by Sam Engel)