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Mental Calculation World Cup is an international competition of mental calculators. ==Mental Calculation World Cup 2004== The first Mental Calculation World Cup was held in Annaberg-Buchholz, Germany on 30 October 2004. There were 17 participants from 10 countries. The World Cup involved the following contests (and two surprise tasks): *Adding ten 10-digit numbers, 10 tasks in 10 minutes * *Winner: Alberto Coto (Spain); 10 correct results; 5:50 minutes, world record *Multiplying two 8-digit numbers, 10 tasks in 15 minutes * *Winner: Alberto Coto (Spain), 8 correct results *Calendar Calculations, two series one minute each, dates from the years 1600–2100 * *Winner: Matthias Kesselschläger (Germany), 33 correct results, world record *Square Root from 6-digit numbers, 10 tasks in 15 minutes * *Winner: Jan van Koningsveld (Germany) In the overall ranking the first place is taken by Robert Fountain (Great Britain), the runner-up was Jan van Koningsveld (Germany). 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Mental Calculation World Cup」の詳細全文を読む スポンサード リンク
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