Mental Calculation, Mathematics, and Puzzles


Topic Replies Activity
How can I start mental calculating 37 February 16, 2019
How to calculate antilogarithm mentally 4 February 14, 2019
Bees can perform simple arithmetic 1 February 7, 2019
World Championships of Magic - sleight of hand 3 February 2, 2019
South African maths whizz answers complex arithmetic questions in seconds 2 January 9, 2019
Calculating logarithms by hand 18 January 4, 2019
Needing a comprehensive book about the influence of mathematical discoveries 2 December 7, 2018
Complex numbers 6 May 7, 2016
Trigonometry functions 5 November 25, 2018
Sleight of hand card palming 3 November 23, 2018
The best Methods Mental Math 18 November 22, 2018
Cross multiplication: How to multiply 3+ digit numbers? 15 October 9, 2016
Stephen Hawking and Math 13 November 18, 2018
Pi Art - Martin Krzywinski 2 November 11, 2018
Hexadecimal (or Binary) Digits of Phi 3 November 9, 2018
"Polynesian people used binary numbers 600 years ago" 1 October 31, 2018
8th Mental Calculation World Cup 2018 6 October 17, 2018
MSO 2018 - Mental calculations questions paper (Pdf) and Final results 2 September 12, 2018
Benjamin's 2x2 Method of Multiplication works for also for 3x3? 4 August 17, 2018
Which is greater? a^b or b^a? 4 June 27, 2018
The importance of mental calculation 3 June 19, 2018
Granth Thakkar's world record for 20 digit multiplication 12 June 10, 2018
How to write faster 4 April 27, 2018
Fastest way to learn mental math 8 April 6, 2018
Mentally calculating logarithms 24 March 29, 2018
What Mental Calculation method should I choose? 6 March 28, 2018
New Years resolutions slowly engaging 10 February 23, 2018
Fastest Methods At Mental Math And Your Personal Timings 2 February 22, 2018
N Roots 2 February 7, 2018
Do you want to learn soroban and flash anzan? Click here for classes online with record holder in memoriad: Jeonghe Lee! 13 January 21, 2018