Skip to Videos All | Interviews | Co-Hosted Matches | Narrated Matches | Finals Matches | Playoff Matches | Regular Season Matches | Instructional Videos | Miscellaneous Performances | Instructional Videos, Traditional vs. Cross Multiplication (with Mental Calculator Sam Engel) Instructional Videos, Alternative Strategies for Rapid Mental Multiplications (with Mental Calculator Sam Engel) Instructional Videos, How to Do Rapid Mental Multiplications using Cross-Multiplication (with Mental Calculator Sam Engel) Instructional Videos, How to Do Rapid Mental Multiplications the Traditional Way (with Mental Calculator Sam Engel) Instructional Videos, How to Do Rapid Additions (with Sam Engel)
