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Tokyo Olympics 2020 September 23, 2022

[Logical thinking quiz]Finding outliers Arithmetic Olympics fun problem[Arithmetic for elementary school students]

Tokyo Olympics 2020 August 18, 2022

[Mathematics problem difficult problem]Thorough explanation of the figure problem of the Olympic level (deviation value 80)! Explanation class that you can definitely understand (junior high school 3rd and high school ~)

Tokyo Olympics 2020 August 10, 2022

[Junior Arithmetic Olympics]Puzzle problems that even 5th graders can solve[Arithmetic to be solved by elementary school students]

Tokyo Olympics 2020 July 29, 2022

[As expected, the Arithmetic Olympics]Graphic problems that can be easily solved by those who notice[Arithmetic for junior high school exams]

Tokyo Olympics 2020 April 29, 2022

[One-shot test of creativity]Elementary school students who can solve graphic problems in an instant[Junior Arithmetic Olympics]

Tokyo Olympics 2020 June 9, 2020

[Online learning video]Tokyo 2020 Arithmetic Problem (for 6th grade elementary school students)