MentalCalculation : Mental Calculation

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Members: 845
Category: Mathematics
Founded: Oct 8, 2002
Language: English

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Description

The topics discussed are for example:
* advanced mental calculation tasks (like extracting roots or multiplying big numbers)
* algorithms
* books about mental calculating
* competitions, achievements and records for mental calculations
* teaching mental calculation at school
* useful computer programs
* using the abacus / soroban
Beginners' questions are welcome, but do not expect to get the solution for your homework here.

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(No subject) Dear calculator friends, What do I see on internet about Mental Calculation and comparable activities? Heaps of longer and shorter videos which have without Posted - Mon Jul 6, 2009 7:46 am	A.W.A.P. Bouman awapbouman Offline Send Email
Colloquium Mathematics Dear Calculationfriends, It is not the first time that I let know not to be amused when I see either videos or read articles in which some prodigees show Posted - Thu Jul 2, 2009 6:23 pm	A.W.A.P. Bouman awapbouman Offline Send Email
Re: Boot That Root! (second attempt - using the other boot?) Hello good friend George, Magnificnent! Willem Bouman ... Van: george972453@... Aan: Mental Calculations Verzonden: maandag 22 juni 2009 20:25 Posted - Thu Jun 25, 2009 6:03 pm	A.W.A.P. Bouman awapbouman Offline Send Email
FREE training Hello Maths lovers Free training in mental maths & abacus for teachers for details contact ________________________________ From: ralf_laue Posted - Tue Jun 23, 2009 12:48 pm	Prabhu Sutar prabhusutar... Offline Send Email
Re: Boot That Root! (second attempt - using the other boot?) Thanks George, one of the best postings so far. Ralf Posted - Mon Jun 22, 2009 9:04 pm	ralf_laue Offline Send Email
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Message History

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2009	51	22	11	16	4	32	2
2008	46	78	31	28	13	45	66	4	37	16	55	24
2007	5	21	5	8	10	46	51	12		19	76	74
2006	23	45	7	19	13	2	7		16	14	27	7
2005	49	19	31	21	32	23	39	44	19	8	26
2004	68	23	69	48	33	9	3	39	24	10	94	67
2003	191	64	147	106	103	24	6	42	15	20	36	5
2002										81	147	190

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