Видео ютуба по тегу Math Shortcut Techniques

Trick To Always Remember Your Times Table (6 to 10)
Trick To Always Remember Your Times Table (6 to 10)
Mental Addition and Subtraction Tips — Math Tricks with Arthur Benjamin
Mental Addition and Subtraction Tips — Math Tricks with Arthur Benjamin
10 Math Tricks School Didn't Teach You But Should Have
10 Math Tricks School Didn't Teach You But Should Have
Mental Math Tricks - Addition, Subtraction, Multiplication & Division!
Mental Math Tricks - Addition, Subtraction, Multiplication & Division!
Simple Math Tricks You Weren’t Taught at School
Simple Math Tricks You Weren’t Taught at School