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 06-16-2018 #1 wenzel     Join Date: May 2013 Posts: 3 Who is able to do this too? Is someone else able to do this? Mental calculation WHILE heading a hard ball? https://www.youtube.com/watch?v=zzoz...ature=youtu.be or https://www.youtube.com/watch?v=jASqOL-ziU0 Please let me know. Wenzel
 06-26-2018 #2 Mr. Hui     Join Date: Mar 2005 Posts: 10,609 That is really amazing. It shows someone who has a strong mind and a strong head! __________________ Do Math and you can do Anything!
 11-02-2018 #3 lyzifafa   Join Date: Nov 2018 Posts: 1 That is really amazing. good
11-15-2018   #4
wenzel

Join Date: May 2013
Posts: 3

Quote:
 Originally Posted by lyzifafa That is really amazing. good
Last week I showed it in Russian TV

https://www.youtube.com/watch?v=mooe...&feature=share

 12-16-2018 #5 Mr. Hui     Join Date: Mar 2005 Posts: 10,609 I watched that a few times. You're an academic and athletic superstar! __________________ Do Math and you can do Anything!
 06-17-2019 #6 qbertz   Join Date: Mar 2019 Posts: 1
 06-27-2019 #7 wenzel     Join Date: May 2013 Posts: 3 MC season this year has started for me. https://www.youtube.com/watch?v=2MSj...7V8KTuqW8yiFA4 tasks 23544 * 34881 = 820 061 064 (correct) 41389 * 54733 = 2 265 344 137 (correct) 41345 * 54683 = 2 260 868 635 (correct) 18963 * 73434 = 1 392 528 942 (correct) I headed the ball 350x (Task 2 and 3 are quite similar because my father was so surprised that I solve the 2nd task and had problems to find another task spontaneously and so variated the last idea in his old brain.) My big challange 2019 is to solve 10 task of 3 x 3 digits while heading the ball. Multiplication of 3 x 3 digits was the "challange task" on WC 14 in Dresden. I won that challange with 10 correct solutions in 10 minutes. But I sat on a table then. Managing this while heading a ball is very hard but I think I can do that this year. Last edited by wenzel; 06-27-2019 at 11:03 AM..
 09-07-2019 #8 Enos   Join Date: Oct 2017 Posts: 1 I imagine 10 minutes is a great time? I was no where close to that.

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