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The Mental Calculation World Cup (German: Weltmeisterschaften im Kopfrechnen, or World Championship in Mental Calculation) is an international competition for mental calculators, held every two years in Germany. [1] [2] [3]
Mental calculation: Mental Calculation World Cup: Individuals 2004 Aaryan Nitin Shukla (2024) 2026 Two years MSO Mental Calculation World Championship: Individuals 1998 Kaloyan Geshev (2024) 2025 One year Junior Mental Calculation World Championship: Individuals (age restricted) 2013 (2023) Andrej Zivanovic (Juniors 1) Kaloyan Geshev (Juniors 2)
The first Mental Calculations World Championship took place in 1998. This event repeats every year and now occurs online. It consists of a range of different tasks such as addition, subtraction, multiplication, division, irrational and exact square roots, cube roots and deeper roots, factorizations, fractions, and calendar dates.
The Mental Calculation World Cup is arranged every two years. The last edition was organized in September 2024 and won by Aaryan Nitin Shukla, who successfully defended his title to become two time World Champion. The Mind Sports Olympiad has staged annual world championships since 1998.
The following eight mental skills have always been part of the Decamentathlon: memory skills, mental calculation, IQ, chess, Go, Othello, 8 by 8 draughts, and creative thinking. MSO also organizes Mental Calculation World Championship separately.
World record for square roots (square root of 6-digit numbers to 8 significant digits, with an average time 3.378 seconds over 10 questions) [7] Shukla also became the youngest winner at the Mind Sport Olympiad Mental Calculation World Championship in 2021, [8] before finishing as runner-up twice.
Mental Calculation World Cup — contest for the best mental calculators; Primary Mathematics World Contest (PMWC) — worldwide competition; Rocket City Math League (RCML) — Competition run by students at Virgil I. Grissom High School with levels ranging from Explorer (Pre-Algebra) to Discovery (Comprehensive)
Neelakanta Bhanu Prakash (born 13 October 1999) is a human calculator, YouTuber and entrepreneur from Hyderabad, India, and is titled as the "World's Fastest Human Calculator". [1] He won gold in the 2020 Mental Calculation World Championship at Mind Sports Olympiad 2020. He also holds 50 Limca records for his mathematical calculations. [2] [3] [4]