tontonan
20:08
Fast Inverse Square Root — A Quake III Algorithm
15:09
How to Multiply Numbers Lightning Fast like Shakuntala Devi (Mental Maths #4)
6:58
9 Riddles That Will Boost Your Thinking Skills
13:33
Finger Mathematics - How to calculate Faster than a calculator Mental maths - 10
15:24
How to become a Math Genius.✔️ How do genius people See a math problem! by mathOgenius
3:24
Factors for the First Time
35:43
Everything to know about FRACTIONS in 30 minutes!
5:31
Percentage Tricks - How to calculate percentages in seconds Mental Maths- 15
