Mental Calculation, Mathematics, and Puzzles


Topic Replies Activity
Modern Approach to Speed Math Secret & Trachtenberg 14 June 27, 2019
does the abacus have a real advantage ? 9 June 25, 2019
How to Count with Binary Numbers 1 June 15, 2019
Junior Mental Calculation World Cup 2019 3 May 2, 2019
Question Paper Pattern of Junior Mental Calculations 2 April 28, 2019
Recommended Book On Vedic Maths, Mental Calculations For Beginners 1 April 7, 2019
Steps to calcuate the sum of two one-digit numbers? 8 April 10, 2019
Vedic math book recommendations for a beginner? 4 April 7, 2019
Knight's tour in Chess 6 April 7, 2019
A Technique for Running Arbitrary Computations in One's Mind 6 March 26, 2019
Resources for mastering mental math 2 March 19, 2019
Tips for learning soroban 11 March 15, 2019
A nearly useless multiplication shortcut 2 March 15, 2019
Soroban and Anzan 44 March 3, 2019
How to memorize the 100 year codes for calendar calculation? 13 March 1, 2019
Real World Division 1 February 17, 2019
How can I start mental calculating 37 February 16, 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