Trick 41 - Can you find 44 x 48 in ONE SECOND ??
Watch this amazing shortcut for finding the product of two numbers differing by 2 or 4 or 6 and so on.....Carry out multiplication TEN TIMES FASTER.
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Пікірлер: 46
It is simple use of a^2 - b^2 = (a+b)(a-b) For example 15 × 17 = (16 -1)(16 +1)= 16^2 -1 = 256 - 1 = 255
@farismohiuddin6170
2 жыл бұрын
Exactly
@tonybarfridge4369
2 жыл бұрын
That's what he said, but he didn't explain till later why 1, because 1^2
if the difference is 1,3,5,............ then how to multiply ........?
When tenth place is same and unit digits add up to 10 32*38=1216 3*4=12 2*8=16 Calculation can be done directly
@tonybarfridge4369
2 жыл бұрын
That one is simple but limited
thank u so much sir for giving amazing videos.. it's really helpful for us.....and u r brilliant sir☺
Can we take pattern square of mid no.- n square
Oh thnx sir ,thnx a lot for helpful suggestions
vow,wonderful trick, especially for banking aspirants
very helpful trick sir
Tq sir.
I proved them. Thank you sir
too good...
thanks
Very useful
Phenomenal sir thanks
Thank you sir you are brillaint sir really much of helpful your tricks
I like your every video
Thank you sir
Just awesome
Tq so much sir
Sir how you got 14 and 13
Sir, why did you use 9 instead of 6 for difference 6, may I get explanation for that
@praneethkoushik5504
4 жыл бұрын
when the number is diffreing by 2 we took 1 square i.e (2/2=1) and when we the diffrence is 4 we took 2 square i.e (4/2=2) and finally when the difference is 6 we have to take (6/2=3) and hence 3square =9 .This is the logic behind that. I hope you could understand this now ..
REALLY A VERY GOOD AND TIME CONSUMING TRICK
@pammisubbarao8335
3 жыл бұрын
Time saving really
Sir I have not understood the last one 11*17 ? The difference is 6 so 6 must be substracted not 9 , please correct me if I am wrong.
@sreehari972
Жыл бұрын
In that case difference is 6, so half of 6 =3 so 3^2=9
Sir what's the mathematical reason behind this.
@sureshaggarwal
6 жыл бұрын
+sujit sharma ....think of a basic algebraic identity
44x48 2200-88=2112
What if gap is 5 i mean 11×16 .... Unable to apply this... Plz clarify... Cuz if gap is an even number it's ok but what if it's odd number
@sureshaggarwal
6 жыл бұрын
+Dharmendra Pandey.....gap should be even
@factsunique007
6 жыл бұрын
Suresh Aggarwal hmmmm i tried it with more questions... Like 98 × 36 and 38 × 88 ... It's working ... I just got that ... (Square of the middle term of two digits - Square of the half of the gap between middle term )
@factsunique007
6 жыл бұрын
Btw tricks are awesome and u r a very good teacher too sir 👍👍
@sureshaggarwal
6 жыл бұрын
+Dharmendra Pandey .....Thanks
@itsmemailingyou4234
7 ай бұрын
If you want to use this method with numbers that have an odd difference you will wind up squaring with numbers that end in .5. Use the squaring any numbers that end in 5 trick to square them. The product will always end in .25 so you can just not add that since it gets canceled out. Since the squaring numbers that end in 5 trick is not just a number squared so understand n(n+1)=n^2+n to keep the first part of that trick easier to combine with the one in this vidoe when using larger squares you already know the product of. Again, I am using the square any number ending in 5 method, and dropping the .5^2 part of the result. 11x16, difference of 5, 5/2= 2.5 11+2.5=13.5 13^2+13=169+13=182 2.5 2^2+2=4+2=6 182-6=176=11×16
🙏👍👍👍👍👍👍👍👍👍👍👍
Why do these methods work?
@sureshaggarwal
5 жыл бұрын
Identity based
@dt3042
5 жыл бұрын
Anita Walia (x+y)(x-y)=x²-y² He uses this identity
Why Hindi always genius? unfortunately the country still snafu because government still corrupt. 👍🏻🙏🏻
Video is not clearly seen
@sureshaggarwal
6 жыл бұрын
+Kumar Ragendra....increase resolution of youtube video setting to 480p or above
Blah blah blah 👎