About the Mental Calculation, Mathematics, and Puzzles category


0

1977

October 27, 2018

889014113748268 mod 222?


39

798

November 30, 2020

Think! There is always an easier way


29

1538

November 29, 2020

How to solve Nonogram Puzzles easily


1

111

November 26, 2020

How to convert Decimal numbers into Binary numbers?


26

1690

November 25, 2020

Is solving one task (of 10) of Memoriad's Addition Tasks, less than 1 minute, a good result?


22

438

November 22, 2020

What are your books about mental calculation?


6

748

November 22, 2020

Mental Arithmetic


0

162

November 11, 2020

Is there a mnemonic trick for switching numeric bases?


4

295

November 9, 2020

Imposter Sudoku


1

287

November 5, 2020

Four digit division with divisors slightly lower than a multiple of hundred


0

181

November 3, 2020

Preferred double digit divisor mental approach


7

465

October 27, 2020

Mental Calculation [recommended books, websites, videos]


5

322

October 27, 2020

Simplified abbacus


1

247

October 24, 2020

Four digit division


0

242

October 24, 2020

Will practicing math sums mentally help me in maths exams that are written(Please help me)


5

421

October 14, 2020

Even easier mentally calculating logarithms


11

1479

September 27, 2020

Mental Calculation world champion Neelakantha Bhanu Prakash in CNN


5

473

September 23, 2020

[Sunday 20th September] Junior Mental Calculation Online Championship 2020


1

322

September 20, 2020

Dealing with very large/small numbers


4

343

September 19, 2020

A quick way to approximate fractions


1

333

September 15, 2020

The Chinese girl winner have no limits


15

864

September 12, 2020

Maths ...You would consider Insanity


3

946

September 7, 2020

Detailed Results of Previous Competitions Surprise Tasks


10

447

September 5, 2020

How to memorize Math’s table (1 to 100)


0

773

November 5, 2019

This guy (Sreenidhi Neermanvi) is faster than Jeonghee Lee


2

518

September 1, 2020

Is Anyone Using Kaktovik Iñupiaq Numerals to Speed up Their Math?


33

3136

August 31, 2020

Soroban and flash anzan


9

6266

August 31, 2020

Mental arithmetic, how?


5

461

August 29, 2020

Learning joseki  game of go


8

896

August 29, 2020
