Mental Calculation, Mathematics, and Puzzles

About the Mental Calculation, Mathematics, and Puzzles category (1)
Stephen Hawking and Math (13)
Pi Art - Martin Krzywinski (2)
World Championships of Magic - sleight of hand (1)
Hexadecimal (or Binary) Digits of Phi (3)
"Polynesian people used binary numbers 600 years ago" (1)
8th Mental Calculation World Cup 2018 (6)
MSO 2018 - Mental calculations questions paper (Pdf) and Final results (2)
Benjamin's 2x2 Method of Multiplication works for also for 3x3? (4)
Which is greater? a^b or b^a? (4)
Mathemagician course (3)
The importance of mental calculation (3)
Granth Thakkar's world record for 20 digit multiplication (12)
How to write faster (4)
Calculating logarithms by hand (17)
Fastest way to learn mental math (8)
Mentally calculating logarithms ( 2 ) (24)
What Mental Calculation method should I choose? (6)
Soroban and Anzan (6)
New Years resolutions slowly engaging (10)
Fastest Methods At Mental Math And Your Personal Timings (2)
N Roots (2)
Do you want to learn soroban and flash anzan? Click here for classes online with record holder in memoriad: Jeonghe Lee! (13)
Any good learning materials on the abacus method? (4)
Hello world (2)
Calculating logarithms (2)
Flash Anzan - How Much Time Does It Take To Master (4)
Revisiting 13/97 (1)
Fast division by 23 (8)
Study Finds Chess Significantly Improves Creative and Critical Thinking Skills (9)