Mental Calculation World Ranking Lists

The general rules for calculating records and the specific rules for thecategories at the Mental Calculation World Cup apply.

Country names in bold script indicate national records.


Addition

ten tasks for adding ten 10-digit-numbers

Jeonghee Lee
South Korea
100
record attempt, Dwight Morrow High School, Englewood, New Jersey, 2014
Granth Rakesh Thakkar India 151.8
record attempt, Dresden, 2014
Naofumi Ogasawara Japan 171.1 Memoriad 2012
Shanshak Jain
India
171.5
Turkish Memoriad 2016
Akshita Shailesh Shah India 186.9 Memoriad 2012
Marc Jornet Sanz Spain 199 record attempt at the Mathematics Faculty of the University of Valencia
Gunishka Jain
India
214.3
Memoriad 2016
Binderya Daimaa
Mongolia
220.6
Memoriad 2016
Alberto Coto Spain 222 Mental Calculation World Cup 2010
Siddhi Jain
India
329.7
Memoriad 2016
Drashti Kapadia India 234.8 Memoriad 2012
Burak Bilgin Turkey
235.8
Turkish Memoriad 2015
Jiya Maniar
India
236.3
Memoriad 2016
Ramon Abella Villa Spain 242 record attempt, Impossibility Challenger Games in Dachau, 2009
Yash Kamal Kumar Jain
India
250.6
Memoriad 2016
Aybars Efe Topçu Turkey
251.8
Turkish Memoriad 2016
Woon Chieng Wong Malaysia 253 Memoriad 2012
Mayank Mukesh Jain India 268 Memoriad 2012
Mohit Nitin Gaikwad India 275 Memoriad 2012
Rhea Shah India
275
Mental Calculation World Cup 2014
Jorge Arturo Mendoza Huertas Peru 278 Mental Calculation World Cup 2008
Yash Dimal Desai India 280 Memoriad 2012
Chie Ishikawa Japan
280
Mental Calculation World Cup 2014
Priyanshi Somani India 283 Mental Calculation World Cup 2010
Shourya Maheshwari India 286
Mental Calculation World Cup 2014
Dhruv Shah
India
307.1
Memoriad 2016
Harshiv Shah
India
310.2
Memoriad 2016
Barış Ergün
Turkey
314.4
Memoriad 2016
Gunıshka Jain
India
321.1
Turkish Memoriad 2016
Salvador Bisshop Flores Spain 325 Mental Calculation World Cup 2008
Ömer Yiğit Aǧma Turkey
326
Turkish Memoriad 2014
Shourya Mohit Maheshwar India
326
Turkish Memoriad 2013
Hakan Gürbaşlar Turkey 332.6 Turkish Memoriad 2013
Can Atai Örken
Turkey
333.8
Memoriad 2016
Tina Bauer Germany 336 Memoriad 2012
Kotori Yamauchi Japan 354 Memoriad 2012
Aysel Kerimova
Azerbaijan
370
Turkish Memoriad 2014
Maitri Maniar India 371
Mental Calculation World Cup 2014
Hamza Sefa Koç Turkey
373.3
Turkish Memoriad 2016
Servet Özkurt Turkey 378 Turkish Memoriad 2009
Hua Wei Chan Malaysia 379.5
Memoriad 2016
Stephanie Chen
USA
382.1
Memoriad 2016
Robert Fountain Great Britain 405 Mental Calculation World Cup 2014
Gerelt-od Dorjogotov Mongolia
410.0
Turkish Memoriad 2016
Dila Bilen Cyprus
410.4
Memoriad 2016
Parashkumar Shah India 416 Memoriad 2012
Zahid Tahirov
Azerbaijan
427
Turkish Memoriad 2014
Kənan Eyybov
Azerbaijan 443
Turkish Memoriad 2014
Georgi Georgiev
Bulgaria
450.8
Memoriad 2016
Irmak Kurşun
Turkey
452
Turkish Memoriad 2013
 Hüseyin Soysaldi
Turkey 453
Turkish Memoriad 2015
Fatma Ceren Arslan
Turkey
466
Turkish Memoriad 2015
Abdurrahman Cırık
Turkey
466.0
Memoriad 2016
Leif Carlsson Sweden 471 Memoriad 2012
Samet Berkay Bayraktar Turkey
472
Turkish Memoriad 2015
Melahat Karakiraz
Turkey
482
Turkish Memoriad 2013
Myagmarsuren Tuuruul Mongolia 488 Memoriad 2012
Seçkin Altinel Turkey 499 Turkish Memoriad 2011
Asya Aksungur Turkey
500.9
Turkish Memoriad 2016
Divesh Ramanlal Shah India 501 Memoriad 2008
Bat-Erdene Batsukh Mongolia
505.4
Memoriad 2016
Alain Bastian Luxembourg 513 Memoriad 2012
İlem Karaca
Turkey
523
Turkish Memoriad 2013
Disha Agarwal
India
523.1
Memoriad 2016
Rhea Sandeep Shah
India
550
Turkish Memoriad 2013
Anumeha Jain
India
554.2
Memoriad 2016
 Meryem Cemre Arslan
Turkey
556
Turkish Memoriad 2013
Lukas Amsüss Austria 559 Memoriad 2012
Can Kayikci
Turkey
570
Turkish Memoriad 2014
Ceren Demir Turkey 580 Turkish Memoriad 2011
Dirk Ewers
Germany
582.7
Memoriad 2016

Multiplication

ten tasks for multiplying two 5-digit numbers

Marc Jornet Sanz Spain 76 record attempt at the Mathematics Faculty of the University of Valencia (Spain), 2010
Jan van Koningsveld Germany 186 record attempt at Berufsbildende Schule I in Emden (Germany), 2005

Multiplication

ten tasks for multiplying two 8-digit numbers

Jeonghee Lee South Korea
197.4
record attempt, Golden Nugget Hotel Las Vegas, 2016
Freddis Reyes Hernández Cuba 210.6 record attempt, Kulturbunker Emden, 2015
Marc Jornet Sanz Spain 269.3 Mental Calculation World Cup 2010
Granth Rakesh Thakkar India 307
Mental Calculation World Cup 2014
Maitri Maniar
India
327.8
Memoriad 2016
Akshita Shailesh Shah India 358 Memoriad 2012
Gunishka Jain
India
373.0
Memoriad 2016
Rhea Sandeep Shah India 439 Memoriad 2012
Mayank Mukesh Jain India 459 Memoriad 2012
Binderya Daimaa
Mongolia
476.7
Memoriad 2016
Dhruv Shah
India
497.9
Memoriad 2016
Alberto Coto Spain 505 Mental Calculation World Cup 2008
Rabiya Nur Çelik
Turkey
508
Turkish Memoriad 2014
Jiya Maniar
India
531.1
Memoriad 2016
Priyanshi Somani India 588 Mental Calculation World Cup 2010
Disha Agarwal
India
594.8
Memoriad 2016
Leif Carlsson Sweden 609 Memoriad 2012
Mohammed Seghir Saïd Algeria 780 record attempt, youth hostel Tizi-Ouzou, 2006
Jan van Koningsveld Germany 784 Memoriad 2008

Square Roots

ten tasks for extracting the root of a 6-digit numbers to an accuracy of 8 digits
Granth Rakesh Thakkar India
61.9
record attempt, Dresden, Germany, 2014
Rhea Sandeep Shah India
90.0
Turkish Memoriad 2013
Priyanshi Somani India 163 record attempt, Lourdes Covent School in Surat, India, 2012
Mayank Mukesh Jain India 232 Memoriad 2012
Hakan Gürbaşlar Turkey 295 record attempt, Ankara, 2011
Selçuk Soner Akgül Turkey 379 record attempt, Ankara, 2010
Pascal Kaul Switzerland
474
Mental Calculation World Cup 2014
Robert Fountain Great Britain
516
Mental Calculation World Cup 2014
Açelia Özçelik
Turkey
544.8
Memoriad 2016
Adi Tamir Israel
539
Mental Calculation World Cup 2014
Maitri Bhanushali
India
552.9
Memoriad 2016
Harshi Bhavsar
India
665.8
Memoriad 2016
Alberto Coto Spain 666 Mental Calculation World Cup 2010
Nodas Boukovalas Greece 870 Memoriad 2012

Calendar

most days-of the week calculated in one minute for random dates from 1600-210
Jay Baldiya Jain
India
125
Memoriad 2016
Yusnier Viera USA
111
record attempt at Miami Dade College, 2015
Myagmarsuren Miigaa
Mongolia 110
Memoriad World Record Attempts Week, Beylikduzu, Istanbul, 2015
Jay Baldiya Jain
India
103
Turkish Memoriad 2016
Jan van Koningsveld Germany 96
record attempt, Früchteburgschule Emden, 2015
Yusnier Viera
Cuba
(now USA)
93 record attempt, 2010
Jainam Nayankumar Shah
India
89
Memoriad 2016
Shashank Jain
India
86
Turkish Memoriad 2016
Myagmarsuren Tuuruul Mongolia 85 Memoriad 2012
Nodas Boukovalas
Greece
82
Memoriad 2016
Akshita Shailesh Shah India 81 Memoriad 2012
Tina Bauer Germany 78 Memoriad 2016
Granth Rakesh Thakkar India 75 Memoriad 2012
Freddis Reyes Hernández Cuba 74 record attempt, 2010
Georgi Georgiev Bulgaria 69
Memoriad 2016
Gunishka Jain
India
68
Memoriad 2016
Marc Jornet Sanz Spain
64
Mental Calculation World Cup 2014
Chavi Jain
India
63
Turkish Memoriad 2016
Enkhluun Batkhishig
Mongolia
63
Memoriad 2016
Binderya Daimaa
Mongolia
60
Memoriad 2016
Alain Bastian Luxembourg 59 Memoriad 2012
Binderiya Bold Mongolia
55
Turkish Memoriad 2016
Ayush Mukesh Jain India 56 Memoriad 2012
Johannes Zhou Germany 54 Memoriad 2012
Jinash Dedhia
India
53
Turkish Memoriad 2016
Yash Kamal Kumar Jain
India
49
Turkish Memoriad 2016
Maitri Bhanushali India
49
Memoriad 2016
Jasper Visser Netherlands 48
Memoriad2016 
Robin Wersig Germany 47 Mental Calculation World Cup 2010
Yash Dimal Desai India 47 Memoriad 2012
Khatanbaatar Khandsuren Mongolia 46 Memoriad 2012
Matthias Kesselschläger Germany 45 record attempt, 2005
Rhea Sandeep India 42 Memoriad 2012
Jiya Maniar India
42
Memoriad 2016
Daniel Timms Great Britain 42
Memoriad 2016
Burak Bilgin
Turkey
41
Turkish Memoriad 2014
Dhyana Patel
India
41
Memoriad 2016
Juan Pablo Duque
Colombia
38
Memoriad 2016
Robert Fountain Great Britain 38
Memoriad 2016
Disha Agarwal India
38
Memoriad 2016
Mayank Mukesh Jain India 37 Memoriad 2012
Khangal Battur Mongolia
37
Memoriad 2016
Priyanshi Somani India 36 Mental Calculation World Cup 2010
Dhruv Shah India
36
Memoriad 2016
Maitri Maniar India
36
Memoriad 2016
Henıl Pranavbhai Bhavsar
India
36
Memoriad 2016
Bat-Erdene Batsukh Mongolia 36
Memoriad 2016
Ryan James King
Australia
36
Memoriad 2016
Erich Prem Austria
35
Mental Calculation World Cup 2014
Açelya Özçelik Turkey
34
Turkish Memoriad 2015
Alberto Rodríguez Alonso Spain
34
Mental Calculation World Cup 2016
Alberto Coto Spain 33 Mental Calculation World Cup 2010
Rüdiger Gamm Germany 33 Mental Calculation World Cup 2008
Georgi Dimitrov Bulgaria 33 Memoriad 2012
Doğan Ömerbaş Turkey 32 Turkish Memoriad 2011
Alexander Drygalla Germany 32 Mental Calculation World Cup 2014
Jeonghee Lee South Korea
35
Mental Calculation World Cup 2016
Atanas Atanasov Bulgaria 31 Memoriad 2012
Ariunzaya Baatar
Mongolia
31
Turkish Memoriad 2015
Irmuunyurtunts Ariunbayar
Mongolia
30
Turkish Memoriad 2016
Harshi Bhavsar
India
30
Memoriad 2016
Selçuk Soner Akgül Turkey 29 Turkish Memoriad 2009
Mohit Nitin Gaikwad India 29 Memoriad 2012
Çiğdem Çalik Turkey 29 Turkish Memoriad 2011
Alberto Rodríguez Alonso Spain
28
Mental Calculation World Cup 2014
Bedirhan Ayyildiz
Turkey
28
Turkish Memoriad 2015
Parashkumar Shah India 27 Mental Calculation World Cup 2012
Silke Betten
Germany
27
Mental Calculation World Cup 2014
Alberto Rodríguez Spain 26 Mental Calculation World Cup 2012
Ganbayar Bat-Ulzii Mongolia 26 Memoriad 2012
Ceren Demir Turkey 26 Turkish Memoriad 2011
Urnukh Tsend-Ayush
Mongolia
26
Turkish Memoriad 2016
John Louis India 25 Memoriad 2008
Servet Özkurt Turkey 24 Memoriad 2008
Mehmet Emre Güngör Turkey
24
Turkish Memoriad 2013
Dhruv Shah India
24
Mental Calculation World Cup 2014
Gülsu Güldoğan Turkey
24
Turkish Memoriad 2015
Gerelt-od Dorjogotov Mongolia
23
Turkish Memoriad 2016
Stephan Gruber Germany 22 record attempt, 2002
Pascal Kaul Switzerland
22
Mental Calculation World Cup 2014
Hakan Gürbaşar Turkey 20 Turkish Memoriad 2011
Gert Mittring Germany 20 record attempt, 1999
Tank Tali Turkey 20 Memoriad 2008
Hasmukh Nakum
India
20
Memoriad 2016
Cemre Su Yağci
Turkey
19
Turkish Memoriad 2013
Daniel Timms Great Britain 18 Mental Calculation World Cup 2012
Adi Tamir Israel
18
Mental Calculation World Cup 2014
Alara Kaya
Turkey
18
Turkish Memoriad 2015
Siddhi Jain
India
18
Turkish Memoriad 2016
Kutay Taşçi
Turkey
17
Turkish Memoriad 2013
Leif Carlsson Sweden 16 Memoriad 2012
Dirk Ewers
Germany
16
Memoriad 2016
Maitri Patel India 15 Mental Calculation World Cup 2010
Ralf Laue Germany 14 Guinness TV Show, 1999
Shourya Maheshwari India
14
Mental Calculation World Cup 2014
Chris Jacob
India
14
Memoriad 2016
Gerelt-od Dorjogotov Mongolia
14
Memoriad 2016
Christopher T. Beeg Germany 13 Memoriad 2012
Hari Prasad India 13 record attempt, 1999
Arun Mangal India 13 Memoriad 2008
Seçkin Altinel Turkey 13 Turkish Memoriad 2011
Rabiya Nur Çelik
Turkey
13
Turkish Memoriad 2014
Ali Burak Köklü
Turkey
13
Turkish Memoriad 2014
David Cantor Medina
Colombia
13
Memoriad 2016
Valentin Barraud France 12 Mental Calculation World Cup 2010
Umut Berk Yüsek
Turkey
12
Turkish Memoriad 2014
Tetsuya Ono Japan
12
Mental Calculation World Cup 2016
Issam Khneisser Libanon 11 Mental Calculation World Cup 2008
Andrew Robertshaw Great Britain 11 Mental Calculation World Cup 2014
Melahat Karakiraz Turkey
11
Turkish Memoriad 2014
Aleyna Çetin
Turkey 11
Turkish Memoriad 2014
Andreas Berger Germany 11
Mental Calculation World Cup 2016
Bhavani Konduru India 10 Mental Calculation World Cup 2012
Pedro Correa Gea Spain 10 Mental Calculation World Cup 2010
Francisco Javier Mañana Rodriguez Spain 10 Mental Calculation World Cup 2008
Anar Binderiya Mongolia 10 Memoriad 2012
Zeynep Gamze Topay Turkey
10
Turkish Memoriad 2013
Priyanshul Chauriya India
10
Mental Calculation World Cup 2014
Maitri Maniar India
10
Mental Calculation World Cup 2014
Ayşe Ceylan
Turkey
10
Turkish Memoriad 2014
Merve Tok
Turkey
10
Turkish Memoriad 2014
Yuki Kimura Japan
10
Mental Calculation World Cup 2016

Mental Calculation: Division

Ten tasks for dividing a 10-digit number by a 5-digit number (no remainders left)

Jeonghee Lee South Korea
86.6
Memoriad 2016
Hakan Gürbaşlar Turkey
138.6
record attempt at the Memoriad World Record Attempts Week, Beylikduzu, Istanbul
Stephanie Chen
USA
191.3
Memoriad 2016
Georgi Georgiev
Bulgaria
203.4
Memoriad 2016
Hua Wei Chan
Malaysia
206.3
Memoriad 2016
Shashank Jain
India
315.3
Turkish Memoriad 2016
Tina Bauer
Germany
331.4
Memoriad 2016
Amit Garg
India
345
record attempt at Baybridge Decision Technologies in Annapolis (USA), 2012
Gunishka Jain
India
360.0
Memoriad 2016
Willem Bouman
Netherlands
367
record attempt in Eindhoven (Netherlands), 2011

Mental Calculation: Factorizing Numbers

The factors of 20 random five-digit numbers (which are not prime numbers) have to be found

Wenzel Grüß
Germany
6:38 minutes
record attempt at the Mental Calculation World Cup 2016
Willem Bouman
Netherlands
13:39 minutes
record attempt in Delft (Netherlands), 2010

Other Remarkable Achievements



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