Hi Ralf, Hi everybody. Yesterday I received an email about a new great mental calculator: Facundo Pelitos, from Andalucía (the South of Spain). Mr Pelitos...
In my opinion fastest possible might be between 18 and 22 seconds Reckon time to add the partial produits and write the digits; I however notice (in my...
... Many - possibly hundreds - of Japanese have already gone faster than this. The top experts in mental soroban do their calculations entirely mentally - it...
Hi folks! The performance is indeed amazing, but Robert's note about the Japanese should also be taken into account. I've not previously heard about their...
... <george972453@y...> wrote: Hi George, I'll be there on the 23rd for sure. Already finished my preparations and now recovering in the clouds. Best wishes, ...
GL> Yesterday I received an email about a new great mental GL> calculator: Facundo Pelitos, from Andalucía (the South of Spain). GL> Mr Pelitos told me that...
Oleg Stepanov
olegstepanov@...
Aug 9, 2005 8:03 pm
1885
... Oleg , can you tell us more about that ? What type of root ? Emmanuël Oleg Stepanov <olegstepanov@...> a écrit :GL> Yesterday I received an email...
... ED> Oleg , can you tell us more about that ? ED> What type of root ? Ops. I supposed all know about it... The task was made highest root. Number has 547...
Oleg Stepanov
olegstepanov@...
Aug 10, 2005 1:19 pm
1887
Hi everybody: In last days I am using in my additions a new techinique for to read numbers. I am adding a hundred digits in less than 17 seconds. And a 10-ten...
Hi everybody, one attempt shot, as Ralf say, it depend on how difficult this single task is for the competitor. while practicing i can easily do for extracting...
Hi Alberto, what technique do you use to solve the additions ? Could you explain this a little bit ? Thank you, Jan alberto coto <alcoga34@...> wrote: Hi...
This posting is to explain my method of mentally extracting the square root of an 8 digit perfect square. About 9 weeks ago we had some discussion in here...
Thanks Robert. I use essentially the same method, as do some other calculators, including George L (it's in his book). You might consider the following small...
Hi Jan: I use a technique of my friend Ramon Campayo, a mnemonist, in Ultrarrapid read. I am reading the numbers very speed with this method. My head can to...
interesting method rob rob1729 <rob1729@...> wrote: Thanks Robert. I use essentially the same method, as do some other calculators, including George L...
CUBES OF SIX DIGIT NUMBERS ( Strange but True !) Please study the Cubes of the following numbers below. 999751 = 999253185987561751 999749 =...
Kurien Thomas
rajukunjumol@...
Aug 17, 2005 2:49 pm
1896
I is not find that strange;
51^3 =132651
11^3=1331
and 99 =970299
You may notice the simillar things for cubes at higher level
the 2 first digits of squares...
Thank you very much for your comments, but unfortunately you have not interpreted the contents of my email correctly. It categorically narrates that my...
Kurien Thomas
rajukunjumol@...
Aug 19, 2005 7:36 am
1898
Thomas; The interresting to me,is to know how you noticed that; Have you browes thes cube through a peculiar software ? Emmanuël Kurien Thomas...
Sorry for my awful spelling; Olen usein väsynyt perjantaina Emmanuel/DATA <emmanuel_dubrulle@...> a écrit :Thomas; The interresting to me,is to know how...
Is 000000 a six digit number? If so, is a 5 digit number really a 6 digit number? Confused, Mike ... http://us.click.yahoo.com/dpRU5A/wUILAA/yQLSAA/wHYolB/TM ...
I found a web page for using excel to multiply 2 large numbers together. It might be useful for anyone who wants to play with such a tough problem yet lacks...
With reference to your letter, please note that I am not computer/internet literate. I am a big zero when it comes to the computer. Even my emails are sent by...
Kurien Thomas
rajukunjumol@...
Aug 22, 2005 7:13 am
1903
Will you describe your method for us in detail? Thank you Robert Loggins ... From: Kurien Thomas To: MentalCalculation@yahoogroups.com Cc: Emmanuel/DATA Sent:...
Preset pattern of squares of numbers containing only “6”s—strange but true. 6^2=36 66^2=4356 666^2=443556 ie addition of two 4s and two 5s before 3 and 6...
Kurien Thomas
rajukunjumol@...
Aug 23, 2005 7:28 am
1905
Yes indeed; Emmanuël Kurien Thomas <rajukunjumol@...> a écrit : Preset pattern of squares of numbers containing only “6”s—strange but true. ...
Gratulations to Gert Mittring who won the Mental Calculation contest at the Mind Sports Olympics - with a perfect score (no errors)! A German report about the...
... contest ... pagename=XP/index&pageid=1006361736814&rubrik=268&artikelid=112469947 4189. ... News does travel fast! Gert Mittring's score is the first...
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