Peter Elst

Founding Partner – Project Cocoon

Vedic Mathematics

with 12 comments

I’ve been reading up vedic maths the last few weeks and its an absolutely fascinating topic. It basically consists of 16 formulae as written down in age-old sutra’s of India and allows for very easy mental calculation of complex division, multiplication, square roots etc.

Just a few basic examples to whet your appetite:

Multiply a two-figure number by 11
This couldn’t be easier — you simply put the sum of the first and last figure inbetween.

72 x 11 = 7 (7+2) 2 = 792

If the sum of the two figures is greater than 9 you simply carry the first figure of the sum and add it to to first figure of your number.

79 x 11 = 7 (7+9) 9 = 7 (16) 9 = 869

Dividing by 9
Here the answer for a two-figure number is the first figure as the result and the sum of the two figures the remainder.

23 / 9
result 2
remainder 2+3 = 5

For dividing three-figure numbers you need to add the sum of the first two numbers to the first figure and the total sum of the three numbers is your remainder.

134 / 9
result 1 (1+3) = 14
remainder (1+3+4) = 8

It is amazing to how these simple rules work and have noticed myself using some of them for quick multiplication etc. The only problem I often have is remembering what exact rule to use in what situation ;)

If I’d been taught basic maths using these techniques I definitely would’ve found it a lot more interesting — just rediscovered the hidden beauty in numbers.

If you want to read up on it some more and take some interactive tutorials vedicmaths.org is a good place to start.

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Written by Peter

March 25th, 2007 at 5:11 pm

Posted in General