Mental Math: Convert Fahrenheit To Celsius In Seconds!
18:26
Trigonometry For Beginners!
9:19
Mental Math: Convert Celsius To Fahrenheit In Seconds!
17:54
The Algebra Step that EVERYONE Gets WRONG!
10:45
Very few people can solve. Which martini glass is closest to 1/2 full?
11:14
Temperature Conversions - Fahrenheit to Celsius to Kelvin
14:49
How to Compute Square Roots in Your Head
9:34
Easy Celsius to Fahrenheit Trick
11:03