Is there a GOOD soul who can explain me why he subtract 1 from each first number and why he can't do it for the last? And, optionally, what trick is it because with the title "SECONDS" it doesn't make sense to me. So what trick is he using?
Prof. I tried this multplication with your method it does not work e. g. 231 × 240 by your method I got 23,0010 but calculator gave me 55, 440 also 2354 x 3469 by method we got 23,531,116. Calculator gave us 8,166,026 Please help us out as we are interested in your method sir.
Unless I'm missing something, this method only works some of the time. Using this method, 6x9= 54 but 9x6 doesn't equal 54, nor does 10x10 or any number of other combinations. It either works all the time or not at all. This method doesn't work. Whoever posted this video should have known it doesn't work.
Using an Excel spreadsheet to do the calculations, I just tried this out on several random numbers ---- clearly does not always work. In fact, did not work for any of my examples.
Don't spoil generation by giving wrong tricks If it is 8×9 working Why it is not working with 9×8?? What's the results for 10×10?? I reported it as misleading
Please,stop sending out this info or kindly bring this video down , you are actually killing the brains of those who like mathematics or non mathematicians individual s/students. This is totally rubbish
Please,stop sending out this info or kindly bring this video down , you are actually killing the brains of those who like mathematics or non mathematicians individual s/students. This is totally rubbish
It looks like it works with only multiplication with factors of 9 or 9s.
Does this only work in specific scenarios? Most of the random equations I tried with will not give correct result.
Yes you are right
Not working for everything, this is misleading
Yes
This only works with x9 multiplications.
@@saftagabriel581yes
Yes it never worked with my equation. I tried many sums with this method with 890 x 90 but it didn't work.
thank a lot for the videos i don care abou what the others say im thankful with what i learn
This is not a principle. It’s limited. Students should be careful!
ua-cam.com/video/SMf15S5iOWc/v-deo.html
Yes
This looks good but is quite limited. For instance try 91x91, 721x8009, 645x9898.
It means it is not a thorough method.
I wish this would work for every multiplication. 😂😂
Same. At first I didn't realize there was ×9 everywhere so I was so sad when I tried it with random numbers and it didn't work
It has limits bro. Very big limits🤐
When do we apply this trick, because it doesn't work with every number?
If 9X6 this technique does not work
@@Sd4666it works if you reverse the order to 6*9. I wouldn't rely on this method.
Thx for teaching :>
I like your video
Solve this with your method - 100×100 = ?
48-1=47;99-47=52=4752
8x9 will not be equal to 9x8.
😂😅😂😊
Exactly 💯
37 x 97, if u using this formula, then you will get 3661 instead of 3589.
75 x 85, you will get 7411 instead of 6375. 😅😅
It doesn't work on every problem
it will work only if the 2nd number is greater than the 1st number
Please solve 134x134,it does not wark
Not applicable to all sums and by using it it will mislead the learners. eg 4*8 is 35
It only works when the second set of multiplication is following 9 series. Else won't work out
48x99=4752
How can I solve 10 x 10 using the same method?
10
100
Is there a GOOD soul who can explain me why he subtract 1 from each first number and why he can't do it for the last? And, optionally, what trick is it because with the title "SECONDS" it doesn't make sense to me. So what trick is he using?
22×54 please slove this in this method
This trik is not usefull 82×81
48 x 99 = 4752
If u doing like this 99 x 48 using that method won’t work only if u put 48 x 99 it will work using that method 😁
9×7 solve using this trick
You would have to change it to 7*9. Not a reliable method.
Can we do 7×4?
Prof. I tried this multplication with your method it does not work e. g. 231 × 240 by your method I got 23,0010 but calculator gave me 55, 440 also 2354 x 3469 by method we got 23,531,116. Calculator gave us 8,166,026 Please help us out as we are interested in your method sir.
23×9
Unless I'm missing something, this method only works some of the time. Using this method, 6x9= 54 but 9x6 doesn't equal 54, nor does 10x10 or any number of other combinations. It either works all the time or not at all. This method doesn't work. Whoever posted this video should have known it doesn't work.
Using an Excel spreadsheet to do the calculations, I just tried this out on several random numbers ---- clearly does not always work. In fact, did not work for any of my examples.
This applies to multiplicand that only consist of number 9.
Sir why i am not getting correct answer for 325x365
This is limited, this isn't good for all figures
Don't spoil generation by giving wrong tricks
If it is
8×9 working
Why it is not working with 9×8??
What's the results for
10×10??
I reported it as misleading
Is this working just for the nine times
Yes
Not always - depends on the order. Doesn't work for 9*6, but works for 6*9.
ถ้าจำนวนหลัง น้อยกว่าจำนวนหน้า ?
Doesn’t work for all cases, for example try 12 x 3,500 !!
111×961 ,this is also coming incorrect with your method
In many cases the method goes wrong. Don't believe everything.
Bruhh only on the 9 times bruhhhhh
Does this only work with 9s
It wont work in most of the cases.
How are you even getting the 1s
9x8=72
To prof d. Try 18 x 19
Like 992×998 it is 991007 by this method but actually it is 990016
it work if the number multiply with 99 or 999 only
Do you have others trick?
8*8 🧐
How to get the answer 7*7=? with this formula
Eso no se enseña en la escuela 😮😮😮😮
How about you just multiply by either 10 or 100 and just subtract by the original number? Absolute bogus of a trick this is.
Y que pedo? Como sabemos de dónde tomó la decisión de quitar el uno del seis y el cinco del nueve? ESTO NO SIRVE
7626 x 99? 😅
Not working in all specific
Eg. 392 * 765
Why does this trick doesn’t work on any number?
17× 9
Can we solve 3×7=
If 15 x 15.....
4752
5×10
It worked
Answer-4752
Try multiplying 48 by 100, and subtracting 48 from the product....
4762
5×
8x7 this technique does not apply, are there specific numbers
ITS ONLY BY 9 DIGITE
Hai
Mmmmmm😊
This is wrong.
Fake
Please,stop sending out this info or kindly bring this video down , you are actually killing the brains of those who like mathematics or non mathematicians individual s/students. This is totally rubbish
AGREED @johnnybekkestad
Every one I tried, Failed!
Prof. D.
This method doesn't work in random numbers.
Please, give us more insight.
5 * 7 gave me 43
4752
Please,stop sending out this info or kindly bring this video down , you are actually killing the brains of those who like mathematics or non mathematicians individual s/students. This is totally rubbish
4752