Multiply Any Number by 12 Mentally in 5 Seconds

[@tonybarfridge4369]

Very good method even if it only works for multiplying with 12. For 63 we could do 12x6x10+12x3=756, but try that with 5 or 6 digits 😉 6257 would be 12x6x1000+12x2x100+12x5x10+12x7; not so bad but remembering each result to add. Writing it also simplifies the video method but more difficult to type out.

[@oliverandamms738]

I have a better one IMO
Divide 63 by 5
12 with a remainder of 3
12 + 63 = 75
3x2= 6
756

[@binodkaushal6726]

Great sir amazing💕😍

[@sureshaggarwal]

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2) 30 short tricks for squares square roots cube and cube roots for Rs 49 only.
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[@siddharth5979]

Sir one doubt
According to the ramanujan's sum of infinity, the sum of all the natural number is -1/12
But
How can the sum of positive numbers be a negative number ?

[@gourabsaha2647]

There is an full proof to this given by Ramanuja and mathematicians cannot claim it wrong

[@siddharth5979]

@@gourabsaha2647 I have seen that but... You read my question again

[@gourabsaha2647]

What I will read

[@modernsavyasachi2534]

Excellent sir.....

[@sankarbiswanath2133]

Size of numbers u are writing over the board is very small and not correctly visible.

[@gourabsaha2647]

Sir nice video

[@அபிராமி-ச7ள]

Super Sir

[@jyothibm1546]

age problem mele vedio madi sir

[@babulalmaurya799]

प्लीज हिंदी मे

[@nehapandey8247]

I am first

[@sureshaggarwal]

Thanks a lot. Do share the links with your WhatsApp groups and contacts