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Vedic Mathematics tutorials (contd...) ...Hope you find it useful ! Pleaase provide your feedback !happy studying !

- AravindG

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- AravindG

\[\huge VEDIC \;\;\;\; MATHS \]

- AravindG

.Adding Time
_______________
Here is a nice simple way to add hours and minutes together:
Let's add 1 hr and 35 minutes and 3 hr 55 minutes together.
What you do is this:
make the 1 hr 35 minutes into one number, which will give us 135 and do
the same for the other number, 3 hours 55 minutes, giving us 355
Now you want to add these two numbers together:
135
355
___
490
So we now have a sub total of 490.
What you need to do to this and all sub totals is
add the time constant of 40.
No matter what the hours and minutes are,
just add the 40 time constant to the sub total.
490 + 40 = 530
So we can now see our answer is 5 hrs and 30 minutes!

- AravindG

Multiplication of 99 with any number (You can't use this rule for other numbers) Let me explain this rule by taking examples
____________________________________________
1. 46*99 = 46*(100-1) = 46*100-46 = 4600-46 = 4554.
2. 362*99 = 362*(100-1) = 36200-362 = 35838.
Understand the rule by 1 more example
2841*99 = 2841*(100-1) = 284100-2841 = 281259

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- AravindG

Square of a 2 digit number ending with 5 (You can't use this rule for other numbers)
_______________________________________________________________________________
Let me explain this rule by taking examples
35^2 = 3*(3+1) ---25 = 1225
Example.
Other example
95^2 = 9*(9+1) ---25 = 9025

- AravindG

Multiplication of any two numbers, both ranging from 11 to 19. (You canâ€™t use this rule for other numbers)
____________________________________________________________________________________
Let me explain this rule by taking examples
13*19 = (13+9)*10 + (3*9) = 220 + 27 = 247
Means add first number and last digit of the second number take zero in the third place of this number then add product of last digit of the two numbers in it.
Example.
18*14 = (18+4)*10 + (8*4) = 220 + 32 = 252

- AravindG

wel thats end of today's tutorial :) hope you all found it useful !
P.S. wish i was better at latexing could have made it more attractive :)

- anonymous

NICE.............!!!!!!!!

- AravindG

thanks @nitz

- hba

Have you given multiplication of 11 with any number ?

- mathmate

@AravindG Nice! Post others soon.

- AravindG

@hba yep it was there in my previous tutorial

- AravindG

@mathmate thanks :)

- mayankdevnani

good job...... @AravindG

- AravindG

thanks @mayankdevnani

- mayankdevnani

can you solve it and then clear to me.
29*15=? in 10 sec.

- mayankdevnani

@AravindG can you???

- AravindG

(30-1)(30)/2

- mayankdevnani

plz reply by drawing!!!!

- AravindG

900-30/2

- AravindG

|dw:1357742825809:dw|

- AravindG

:)

- mayankdevnani

yaaa......another one !!!!!! can i?

- AravindG

haha u testing me? :P

- mathmate

I would do 30*15-15=435

- mayankdevnani

no!!!!!! its a nice .....tutorial for checking it

- AravindG

thats also a nice method @mathmate

- mathmate

Bring in more (tests) !!!

- AravindG

yep @mayankdevnani

- mayankdevnani

@mathmate how you do this?

- mayankdevnani

56^2 plz reply by drawing

- mathmate

No drawing required, it's mental math.
3136=(25+6)*100+6^2

- mathmate

The 6's comes from (56-50).

- AravindG

@mathmate nice one :)

- mathmate

So 59^2=3481

- mayankdevnani

i don't understand!!!!!!

- mayankdevnani

|dw:1357743155347:dw|

- mathmate

Here how this works:
We split 56=50+6
So 56^2 = 50^2+2*50*6 + 6^2 = 2500+600 + 6^2 =(25+6)*100+6^ QED

- mathmate

6^2

- mayankdevnani

no, by vedic method!!!!

- AravindG

that calls for me :)

- mayankdevnani

yaaa

- mayankdevnani

tring,tring @AravindG olz attend the call

- mathmate

\( \huge 56^2 = (50+6)^2 = 50^2+2*50*6+6^2 =2500+600+6^2 =(25+6)*100+36 \)

- mathmate

@mayankdevnani do you do Vedic math?

- AravindG

pls wait i am a bit bsy

- mayankdevnani

no....

- mayankdevnani

plz fast @AravindG i have 2 min ....then i have to eat food....

- mathmate

Intellectual matters trump over food, unless of course you are "requested" to eat food by a superior being.

- AravindG

well in this method we take something called base for computation of square

- mathmate

Interesting "rencontre". Will meet some other time! Thanks to all! :)

- mathmate

@Aravindg Keep going!

- AravindG

for 56^2 we take 50 as base

- AravindG

ok now what we do is find out deficiency or excess from base .here it is +6

- mathmate

@AravindG Still there? I am listening. @mayankdevnani will read it later! :)

- AravindG

srry i am multitasking talking to a friend also ! :P

- AravindG

ok then ...then we add the excess to the original number
that will be 56+6=62

- AravindG

now multiply this number with the base ,here we took base as 50
so 62*50=2100

- mathmate

*3100

- AravindG

oops 3100

- AravindG

ya now simple add square of deficiency to get final answer!
ie
3100+(6)^2=3136
thats all!

- mathmate

yep! That's great, because it works for all squares. The one I showed only works around 50 (special case that you can add to Vedic math! :P )

- AravindG

exactly i am planning to explain this topic in detail in next tutorial !! thanks to all those who made this tutorial more interactive and interesting.

- mathmate

Send me an invitation in your next tutorial! Until now, I don't know anything about Vedic math, but I love mental math!
Thanks and talk to you soon! :)

- AravindG

seeya !

- mathmate

:)

- jiteshmeghwal9

|dw:1357799017114:dw|

- AravindG

3136

- jiteshmeghwal9

It's also another fast method using identities ;)

- jiteshmeghwal9

Vedic maths, consisting fastest techniques for calculation, gr8 work @AravindG , keep it up ;)

- AravindG

thanks! :)

- jiteshmeghwal9

2500+36+600=3136, right ;)

- AravindG

hw abt 78^2 ? @jiteshmeghwal9 dont write calculate in mind

- AravindG

............?

- jiteshmeghwal9

(80-2)^2=(80)^2+(2)^2-2(80)(2)=?

- AravindG

did u do that in ur head?

- jiteshmeghwal9

6400+4-320=6404-320=5084 & no, I only remembered the property :)

- AravindG

sorry folks gtg ....gn8 !

- jiteshmeghwal9

Ok ! bye ;)

- anonymous

very informative !!

- anonymous

@mayankdevnani
check if it helps u
56^2
square of 6 is 36 and square of 5 is 25
hence
square of 56 is (25+6)36=3136
square of 59 is (25+9)81=3481
square of 52 is (25+2)04=2704.... and so on only for nos between 51 -59

- AravindG

i liked this special case mathmate mentioned :)

- anonymous

Wait is this the same math that I see on TV ads?

- AravindG

TV ads o.O?

- AravindG

this is vedic maths

- anonymous

there are many more like these silly things
i doubt fo Vedic maths

- anonymous

Yeah I've seen this on TV. People selling videos and tell you how to do it. They advertise it as a world secret or something lol

- AravindG

lol i do this for free @RyanL.

- anonymous

lol yeah I know it's just funny how it reminded me of that TV ad.

- anonymous

Mathematics should be used to simplify understanding and pacify computation
rather than jolting from simpler to a long computing technique

- mathmate

You can use the same method for 78^2 (excess = 28)
78^2 = (25+excess)*100 + excess^2 = 5300+784=6084
Same as before, but you need to know 28^2=784.
Alternatively, you do
deficiency of 78 (from 100) = 22
78^2 = (78-deficiency)*100+deficiency^2=(78-22)*100+22^2=5600+484=6084
If you don't memorize/calculate large squares like 22 or 28, you can use the Vedic method:
Deficiency from 80 = 80-78=2
78^2=(80-deficiency)*80+deficiency^2=80*76+2^2=6080+4=6084
You can do all of the above in your head.

- AravindG

:)

- tamtoan

there's one problem with the method of adding time...for example:
1:00 + 1:00 = 2:00 right?
100 + 100 = 200
and 200+40 = 240
so it's 2:40 ...not 2:00
there should be one more condition under certain circumstance to use your method for adding time.

- AravindG

@tamtoan thanks for pointing it out ..But I think that case is already understood
if one of the time is x:00 and other is y:z we actually do not need any trick at all
we already know that the sum =x+y:z .

- tamtoan

how about , 1:20 + 1:25 = 2:45
but 120+125+40 =285
so what is the time with 285 now ?

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