Math Is Fun Forum

sduraisami

Member

Registered: 2009-06-11

Posts: 2

short cuts

hello friends,

     i am more interested in short cut mathematics i hope this site would be more handy.

richiedonaine

Member

Registered: 2008-08-15

Posts: 1

Re: short cuts

" there was no royal road to geometry"  Euclid.

DarkLightA

Member

Registered: 2009-05-27

Posts: 16

Re: short cuts

Short cut maths? You mean-like-learning everything in a week?

hi anyway

MathsIsFun

Administrator

Registered: 2005-01-21

Posts: 7,713

Re: short cuts

Tricks, maybe?

Or neat ways that mathematics can solve difficult problems?

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"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,394

Re: short cuts

Ok. Here's one.
Testing whether the product of two numbers is correct:-

Add the sum of the first number till you get a single digit. Add the numbers os the second number till you get a single digit.
Multiply the numbers, add all the digits.
If it agrees with the produce of the sum of the two numbers in the first step, the multiplication is probably right. If not, the product is definitely not correct.
(Source : Vedic Mathematics)

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It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 48,394

Re: short cuts

And here's another: Actually a trick:-
Ask your friend to write a three digit number beside itself.
Ask him or her to divide the number by 7 and then by 11.
The answer would always be 13.

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It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: short cuts

Hi ganesh;

Vedic Math is really great.

Last edited by bobbym (2009-06-13 19:27:48)

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In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

quittyqat

Member

Registered: 2009-04-08

Posts: 1,215

Re: short cuts

Calculator trick:
Ask a friend to type 12345679 into a calculator. (Note the missing 8.
Tell them to multiply it by their favorite 1-digit number.
Tell them to multiply the result by 9.
They will get a whole row of their favorite numbers!

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I'll be here at least once every decade.

teddyfosu

Member

Registered: 2009-10-06

Posts: 2

Re: short cuts

Hi Every Body This Your Boy Teddy From Ghana.let Work Hand In Hand For We Are The World.

soha

Real Member

Registered: 2006-07-07

Posts: 2,530

Re: short cuts

Welcome To The Forum Sduraisami And Teddyfosu...

And Yes, Vedic Math Is Really Great ...
Have Anyone Of You Attended Its Classes ??? Ganesh.... Did You

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"Let us realize that: the privilege to work is a gift, the power to work is a blessing, the love of work is success!"
- David O. McKay