Mental Calculation, Mathematics, and Puzzles


Which is greater? a^b or b^a? (4)
The importance of mental calculation (3)
Granth Thakkar's world record for 20 digit multiplication (12)
How to write faster (4)
Fastest way to learn mental math (8)
Mentally calculating logarithms ( 2 ) (24)
What Mental Calculation method should I choose? (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)
Dividing by full reptend primes (6)
Calculating odds in poker? (4)
Soroban - can I use my left hand? (3)
More division tricks. Numbers ending in 1 or 2 (5)
does the abacus have a real advantage ? (8)
Mental Calculation - Division - Resources? ( 2 ) (27)
Very quick division trick for numbers ending in 9 or 8 (2)
Flash anzan and techniques (2)
Help choosing a system for mental math ( 2 ) (22)
Creative ways of multiplying differently (1)
Best association system for numbers 0 - 999? (7)
Memorizing squares up to 999? (6)