Mental Calculation World Cup 2008

Jahr der Mathematik

Leipzig, Germany, 29 June-1 July 2008

CONTENTS: Mental Calculation World Cup Web Site | Maths Links
WORLD CUP 2008:  General Information | Results | Leipzig - Information for Tourists | Science Year 2008


Overall Ranking

rank
 participant
 score
1
 Alberto Coto (Spain) 407,74
2
 Jan van Koningsveld (Germany) 383,12
3
 Jorge Arturo Mendoza Huertas (Peru) 343,42
4
 Robert Fountain (Great Britain) 323,33
5
 Rüdiger Gamm (Germany)  261,19
6
 Alexander Drygalla (Germany) 227,59
7
 Andrew Robertshaw (Great Britain)  210,15
8
 Kenneth Wilshire (Great Britain) 194,17
9
 Tina Bauer (Germany) 178,96
10
 Issam Khneisser (Libanon)* 178,37
11
 John Louis (India) 175,35
12
 Mohammed Seghir Saïd (Algeria) 159,50
13
 Willem Bouman (Netherlands) 148,87
14
 Francisco Javier Mañana Rodriguez (Spain)* 142,78
15
 Silke Betten (Germany) 139,36
16
 Wouter de Lange (Netherlands) 133,23
17
 Stefan Lehmann (Germany)* 113,32
18
 Robin Wersig (Germany)* 111,18
19
 Valentin Barraud (France) 110,15
20
 Matthias Kesselschläger (Germany)* 97,50
21
 Salvador Bisshopp Flores (Spain) 97,48
22
 Justin Hartley (Australia) 66,97
23
 Melik Duyar (Turkey) 65,84
24
 Vinay Bharadwaj (India)* 50,93
25
 Ali Bayat Movahhed (Iran) 46,32
26
 José María Bea (Spain) 42,97
27
 Mohammed Seghir Sofiane (Algeria)* 0,00
28
 Veena Subramanian (India)* 0,00

*: Did not take part in all single events

Adding ten 10-digit numbers

(10 tasks in 10 minutes, best of two rounds)
1 Alberto Coto (Spain) 10 in 4:26 min
(WR)
2 Jorge Arturo Mendoza Huertas (Peru) 10 in 4:38 min
3 Salvador Bisshopp Flores (Spain) 10 in 5:25 min
4 Robert Fountain (Great Britain) 10 in 7:20 min
5 Jan van Koningsveld (Germany) 9
6
 Mohammed Seghir Saïd (Algeria) 9
7 Francisco Javier Mañana Rodriguez (Spain)
 8
8
 Rüdiger Gamm (Germany) 8
9
 John Louis (India) 8
10 Kenneth Wilshire (Great Britain) 7
11 Tina Bauer (Germany)
5
12 Vinay Bharadwaj (India) 5
13 Andrew Robertshaw (Great Britain) 5
14 Silke Betten (Germany) 5
15 Alexander Drygalla (Germany) 4
15 Wouter de Lange (Netherlands) 4
17 Stefan Lehmann (Germany) 4
18 Melik Duyar (Turkey) 3
18 Robin Wersig (Germany) 3
18 Justin Hartley (Australia) 3
21 Willem Bouman (Netherlands) 2
21 Valentin Barraud (France)  2
23 José María Bea (Spain) 2
24 Mohammed Seghir Sofiane (Algeria) 0
24 Veena Subramanian (India) 0
24 Ali Bayat Movahhed (Iran) 0

Multiplying two 8-digit numbers

(10 tasks in 15 minutes, best of two rounds)

1 Alberto Coto (Spain) 10 in 8:25  min
(WR)
2 Mohammed Seghir Saïd (Algeria) 10 in 13:04 min
3 Jan van Koningsveld (Germany) 7
4 Rüdiger Gamm (Germany)  7
5
 Jorge Arturo Mendoza Huertas (Peru) 7
6 Robert Fountain (Great Britain) 6
6 Wouter de Lange (Netherlands) 6
8 Stefan Lehmann (Germany) 4
9  Tina Bauer (Germany)
3
9 Kenneth Wilshire (Great Britain) 3
11
 Andrew Robertshaw (Great Britain) 3
12
 Alexander Drygalla (Germany) 3
13 Valentin Barraud (France)  2
14 Melik Duyar (Turkey) 2
14 Salvador Bisshopp Flores (Spain) 2
14 Justin Hartley (Australia) 2
17 Silke Betten (Germany)
1
17 Willem Bouman (Netherlands) 1
19 Mohammed Seghir Sofiane (Algeria) 0
19 Vinay Bharadwaj (India) 0
19 Ali Bayat Movahhed (Iran) 0
19 John Louis (India) 0
19 José María Bea (Spain) 0

Calendar Calculations

(one minute, dates from the years 1600-2100, best of two rounds)

1 Jan van Koningsveld (Germany) 40
2 Matthias Kesselschläger (Germany) 39
3 Robin Wersig (Germany) 33
3 Rüdiger Gamm (Germany)  33
5 Alexander Drygalla (Germany) 29
6 Robert Fountain (Great Britain) 24
7 Silke Betten (Germany)  22
8 Alberto Coto (Spain) 18
9 Tina Bauer (Germany)  17
10 John Louis (India) 14
11 Issam Khneisser (Libanon) 11
12 Francisco Javier Mañana Rodriguez (Spain) 10
13 Andrew Robertshaw (Great Britain)  6
13 Mohammed Seghir Saïd (Algeria) 6
13 Melik Duyar (Turkey) 6
16 Valentin Barraud (France)  5
16 José María Bea (Spain) 5
18 Kenneth Wilshire (Great Britain) 4
18 Justin Hartley (Australia) 4
20 Willem Bouman (Netherlands) 3
21 Ali Bayat Movahhed (Iran) 2
21 Wouter de Lange (Netherlands) 2
23 Vinay Bharadwaj (India) 1
24 Mohammed Seghir Sofiane (Algeria) 0
24 Veena Subramanian (India) 0

Square Root from 6-digit numbers

(10 tasks in 15 minutes, best of two rounds)

rank
score











1 Jan van Koningsveld (Germany) 345

8 6 8 8 8 8 8 8 8 8
2 Willem Bouman (Netherlands) 324

8 8 5 8 8 6 8 8 8 8
3 Robert Fountain (Great Britain) 319

8 8 8 8 8 8 8 4 6 8
4 Alberto Coto (Spain) 316

8
 6
 8 8 5
 8 8 7 8 8
5 Francisco Javier Mañana Rodriguez (Spain) 284

8 8 4 7 8 7 7 8 4 8
6 Issam Khneisser (Libanon) 280

8
 8
 4
 6
 8
 7
 7
 6
 7
 8
7 Rüdiger Gamm (Germany)  204

8 4 8 5 3 7 6 4 3 8
8 John Louis (India) 196

4
 5
 7
 8
 5
 5
 7
 8
 4
 2
9 Alexander Drygalla (Germany) 174

7 2 7 5 4 3 3 8 8 3
10 Andrew Robertshaw (Great Britain)  141

2
 2
 7
 6
 4
 4
 8
 2
 3
 6
11 Wouter de Lange (Netherlands) 133

5
 4
 7
 6
 5
 4
 3
 5
 4
 2
12 Ali Bayat Movahhed (Iran) 121

6 7 0 5 2 2 3 2 6 6
13 Tina Bauer (Germany)  116

8 7 4 6 5 3 0 0 0 0
14 Kenneth Wilshire (Great Britain) 114

8 6 0 4 3 7 0 3 3 1
15 Silke Betten (Germany)  113

7 1 8 3 8 1 1 0 2 1
16 Valentin Barraud (France)  108

5
 4
 5
 4
 5
 4
 3
 3
 5
 3
17 Mohammed Seghir Saïd (Algeria) 51

1 4 3 6 2 1 2 3 0 0
18 Melik Duyar (Turkey) 49

4 2 3 3 3 3 2 2 2 2
19 José María Bea (Spain) 48

3
 3
 3
 2
 2
 3
 3
 2
 3
 2
20 Stefan Lehmann (Germany) 46

2
 2
 3
 2
 1
 4
 1
 2
 3
 4
21 Justin Hartley (Australia) 27

1 3 2 2 2 1 1 2 2 2
22 Vinay Bharadwaj (India) 11

1 1 0 2 1 2 0 1 0 1



The Task Sheets

Calendar: 1st round, 2nd round,
Multiplication: 1st round, 2nd round,
Addition: 1st round, 2nd round,
Square Roots: 1st round, 2nd round,
Surprise 1,
Surprise 2

CONTENTS: Mental Calculation World Cup Web Site | Maths Links
WORLD CUP 2008:  General Information | Results | Leipzig - Information for Tourists | Science Year 2008