Fast Mental Multiplication Trick You Must Use!

This multiplication method is so simple, yet you probably don't know it because it generally isn't taught in school. That's fine; YouTube and Mahbub have your back with this, the easiest multiplication technique you've never learned in school! Enjoy the Video. Like. Comment. Share. Subscribe to    / @learn.with.mahbub   Playlists: Lightning Fast Mental Math Calculation Series :    • Lightning Fast Mental Math Calculation Series   Mind Calculations:    • Mind Calculation hacks   ~-~~-~~~-~~-~ Please watch: "How to Calculate Faster than a Calculator - Mental Math #2"    • Mental Math Multiplication Tricks #2 : Dou...   ~-~~-~~~-~~-~