Instructional Videos, • 4/22/25 How to Do Rapid Mental Multiplications using Cross-Multiplication (with Mental Calculator Sam Engel) Previous Alternative Strategies for Rapid Mental Multiplications (with Mental Calculator Sam Engel) Next How to Do Rapid Mental Multiplications the Traditional Way (with Mental Calculator Sam Engel) You Might Also Like Calculation League Season 2 Finals --- Kaloyan vs. Rahul (narrated by Sam Engel) Calculation League Season 2 Finals --- Aaryan vs. Rahul Mental Calculation League Season 1, Playoff Match #3 Calculation League Season 2 Finals --- Wenzel vs. Jure Mental Calculation League Season 1, Playoff Match #17 (with Domenico Mancuso)
Instructional Videos, • 4/22/25 How to Do Rapid Mental Multiplications using Cross-Multiplication (with Mental Calculator Sam Engel) Previous Alternative Strategies for Rapid Mental Multiplications (with Mental Calculator Sam Engel) Next How to Do Rapid Mental Multiplications the Traditional Way (with Mental Calculator Sam Engel) You Might Also Like Calculation League Season 2 Finals --- Kaloyan vs. Rahul (narrated by Sam Engel) Calculation League Season 2 Finals --- Aaryan vs. Rahul Mental Calculation League Season 1, Playoff Match #3 Calculation League Season 2 Finals --- Wenzel vs. Jure Mental Calculation League Season 1, Playoff Match #17 (with Domenico Mancuso)