Just a reminder: no matter the level of the teaching, its the perseverance that predict you results. The teacher is no wizard, they just help you on the right tack and dont think for you.
*Multiplication 5* ● when using the trachtenberg method, we start from the last digit, working our way towards the first. So from right to left ● the digit underneath will be half the number to the right ➡️ EG : 026 × 5 130 1) underneath 6 there is 0 since there are no numbers after 6. 2) underneath 2 there is 3 since half of 6 = 3 - it is important to note that in front of every number, there is an zero, and underneath the zero will be half of the first digit. - In this case there is 1 underneath 0 since half of 2 = 1 ● if the original (top) number is odd, then add 5 to the value you get after halving the number to the right 《Example》 036 × 5 180 1) here, the number under under 3 is 8. This is because half of 6 is 3, and since the original (top) number is odd, we add 5 to the half, so 3+5=8. ● it is important to remember that the half of odd numbers will not end in .5, instead we will ignore it and just use the first digit. In this case, underneath 0 is 1, since half of 3 is actually 1.5 and we have ignored the .5 *Multiplication 6* ● underneath each number, will be the original (top) value + add half of the number to its right 《Example》 026 × 6 156 - underneath the 6, there will be a 6 and nothing else since there is no other value next to the top 6 - underneath 2, there is a 5 since we halfed 6 which = 3 and added it to the original top number which is 3+2=5 - underneath 0 there is a 1 since half of 2 = 1 and 1+0=1 ● if the top digit is an odd number, then we'll do the same exact thing, however we will add an additional 5 to it. 《Example》 036 × 6 2•16 1) underneath 6 there is a 6 since there is no neighbouring digit 2) underneath 3 there is •1, this is because half of 6 is 3 so 3+3=6 then we add the additional 5 which is 6+5=11 since 11 is a two digit number, we will use the unit number and next to it we'll put a dot to represent the extra tens. 3) underneath 0 there is a 2 since half of 3 is 1 and we added the extra ten from the last digit, so 1+1=2 *Multiplication 7* ● underneath the top number, we will double the top value, then add half of the neighbouring number 《Example》 026 × 7 18•2 - underneath 6 there is a •2 which basically represents 12. This is because we double 6 which = 12 and added 0 since there is nothing next to it. - underneath 2 there is an 8, since 2×2=4 and half of 6 = 3 so 4+3=7. Then we added the extra 10 on which is 7+1=8 - underneath 0 is 1 since 0×2=0 and half of 2=1 ● just like before, if the top digit is an odd number, we will do the same thing but add an additional 5 《Example》 036 × 7 2•5•2 1) underneath 6 there is •2 since 2×6=12 2) underneath 3 there is •5, since 3×2=6 add half of 6 which is 3, so 6+3=9 Then we add the additional 5 which is 9+5=14 and then add the extra ten 14+1=15 3) underneath 0 there is a 2, since half of 3 is 1 add the extra 10 1+1=2 *Multiplication 11* ● underneath the digit, add the neighbouring number to the top value 《Example》 026 × 11 286 1) underneath 6 is 6, since there's nothing next to 6 2) underneath 2 is 8 since 6 is the neighbouring digit so 2+6=8 3) underneath 0 is 2 since 2 is the neighbouring digit
@kumarsiva5701 598 × 5 = 2990 0598 × 5 2990 ● the number underneath 8 is 0 since it is the last digit of the number ● the number underneath 9 is 9 because half of 8 is 4, and since 9 is an odd number, we must add 5 to 4 = 9 ● the number underneath 5 is 9 since half of 9 is 4.5 However, we must ignore the .5 And since 5 is an odd number, we must add 5 to 4 = 9 ● lastly the number underneath 0 is 2 since half of 5 is 2.5 and we will ignore the .5
❤Thanku bhaiya, I have been finding a alternative of tables. Now I am in 9th standard but I have problem in remembering the tables thanks 🙏 alot bro pls continue this series. You are contributing to students who have difficulty in math who don't like math due to its calculations(tables).
Sir before moving forward I would like to say that 1 is also odd number but why you didn't add 5 where as you add 5 with 3 . Explain it to me make me out of doubt sir 🤔🙏😊.
I looked at the number and thought what system would I make up to Multiply by 5. I just added 0 to the right and then 1/2 the number. This is just easier math to me. The 0 to multiply by 10 and 5 is 1/2 that. If the number is odd you 1/2 the number and add 5 to the number to the right. So when he explained it, it seemed similar to what I just figured out. Never really thought about it before this though. Going to have to think about the others and learn the system. :)
it is tho, the definirion of an even number is that it can be written as 2×n,n being a natural number, 0 is a natural number so 2×0=0 means 0 is even but being odd means the number can be written as 2n+1 wich 0 cannot be written as if n is a natural number
Explanation is great. But i didn't understand one thing. How could the Trachtenberg method work in muliplication of 5, with 793 × 5? As per the rule, the neighbour of 3 is zero. But how did 5 appear in the ones place? Can you please explain? 👍
Apply Bruce Lee's philosophy , do not fear the man who practices a thousand punches once, but the one who practices one punch a thousand times. Drill the Mind Sets for each RULE. With simple patience, practice, micro naps, throughout years you are supposed to learn them in your formative years, the world of mathematics in algebra and other maths will be open to you. Woo! Physics! Math is a language of truth. Let it be your friend.
Great question! in a previous video in one eg multiply 54x56 very fast but with a condition that starting numbers are same and ending digits add to 10. but for this method there are no conditions like that. if you remember a key for specific number then you can multiply any number with that. its like a table for that number.
8379 * 5 = 41895. I,m stuck at 8. Please let me know how can I get 41 to complete the calc? 793 * 5 = 3965, again the same problem... You are highly appreciated for the efforts you put in to educate us. 🙏❤🧡❤🙏
I hope you enjoy this Video and Learn something New !
Sir can u make video on divison please
Where is 4,8 and 9
next part
brother this is the mostttt brilliant method I've ever seen as of now! Thanks for sharing~
Yup Mary Adler from gifted😊
Just a reminder: no matter the level of the teaching, its the perseverance that predict you results. The teacher is no wizard, they just help you on the right tack and dont think for you.
*Multiplication 5*
● when using the trachtenberg method, we start from the last digit, working our way towards the first. So from right to left
● the digit underneath will be half the number to the right ➡️
EG :
026 × 5
130
1) underneath 6 there is 0 since there are no numbers after 6.
2) underneath 2 there is 3 since half of 6 = 3
- it is important to note that in front of every number, there is an zero, and underneath the zero will be half of the first digit.
- In this case there is 1 underneath 0 since half of 2 = 1
● if the original (top) number is odd, then add 5 to the value you get after halving the number to the right
《Example》
036 × 5
180
1) here, the number under under 3 is 8. This is because half of 6 is 3, and since the original (top) number is odd, we add 5 to the half, so 3+5=8.
● it is important to remember that the half of odd numbers will not end in .5, instead we will ignore it and just use the first digit.
In this case, underneath 0 is 1, since half of 3 is actually 1.5 and we have ignored the .5
*Multiplication 6*
● underneath each number, will be the original (top) value + add half of the number to its right
《Example》
026 × 6
156
- underneath the 6, there will be a 6 and nothing else since there is no other value next to the top 6
- underneath 2, there is a 5 since we halfed 6 which = 3 and added it to the original top number which is 3+2=5
- underneath 0 there is a 1 since half of 2 = 1 and 1+0=1
● if the top digit is an odd number, then we'll do the same exact thing, however we will add an additional 5 to it.
《Example》
036 × 6
2•16
1) underneath 6 there is a 6 since there is no neighbouring digit
2) underneath 3 there is •1, this is because half of 6 is 3 so 3+3=6 then we add the additional 5 which is 6+5=11
since 11 is a two digit number, we will use the unit number and next to it we'll put a dot to represent the extra tens.
3) underneath 0 there is a 2 since half of 3 is 1 and we added the extra ten from the last digit, so 1+1=2
*Multiplication 7*
● underneath the top number, we will double the top value, then add half of the neighbouring number
《Example》
026 × 7
18•2
- underneath 6 there is a •2 which basically represents 12. This is because we double 6 which = 12 and added 0 since there is nothing next to it.
- underneath 2 there is an 8, since 2×2=4 and half of 6 = 3 so 4+3=7. Then we added the extra 10 on which is 7+1=8
- underneath 0 is 1 since 0×2=0 and half of 2=1
● just like before, if the top digit is an odd number, we will do the same thing but add an additional 5
《Example》
036 × 7
2•5•2
1) underneath 6 there is •2 since 2×6=12
2) underneath 3 there is •5, since 3×2=6 add half of 6 which is 3, so 6+3=9
Then we add the additional 5 which is 9+5=14 and then add the extra ten 14+1=15
3) underneath 0 there is a 2, since half of 3 is 1 add the extra 10 1+1=2
*Multiplication 11*
● underneath the digit, add the neighbouring number to the top value
《Example》
026 × 11
286
1) underneath 6 is 6, since there's nothing next to 6
2) underneath 2 is 8 since 6 is the neighbouring digit so 2+6=8
3) underneath 0 is 2 since 2 is the neighbouring digit
Exercise : practice Multiplication 6
0827 × 6
496•2 ✅️
* Remember to carry the ten over
0792 × 6
4•7•52 ✅️
01927 × 6
1•1•56•2 ✅️
071930 × 6
4•3•1•580 ✅️
Thanks urs is much simpler to understand 😂
Tell me how to do 598 X 5. I tried but answer not coming. pls explain it...
@kumarsiva5701
598 × 5 = 2990
0598 × 5
2990
● the number underneath 8 is 0 since it is the last digit of the number
● the number underneath 9 is 9 because half of 8 is 4, and since 9 is an odd number, we must add 5 to 4 = 9
● the number underneath 5 is 9 since half of 9 is 4.5 However, we must ignore the .5
And since 5 is an odd number, we must add 5 to 4 = 9
● lastly the number underneath 0 is 2 since half of 5 is 2.5 and we will ignore the .5
@@RuiJelliwhat is 277 x 5
who came here because of mary?
watched it just today
Right here lol
Lol the only reason I knew about this.. :)
Gifted 👏😂
What do you mean you illiterate illusion
Thank you for helping me learn faster and easier. I'm thankful you are on YT.
Omg Sir this is really work for me.Thank You Sir 🎉
Sir please make video. On division and sir we can do questions like 22797×55555 or not please
❤Thanku bhaiya, I have been finding a alternative of tables. Now I am in 9th standard but I have problem in remembering the tables thanks 🙏 alot bro pls continue this series. You are contributing to students who have difficulty in math who don't like math due to its calculations(tables).
Hey I am very happy to see you again sir. Being a 10th grade student I love your videos
Same 😊😊
this video really helped me!
Thank you! I was not passing math last year... this year you have helped me get A's!!
Thankyou ❤😊
More videos of mental multiplication please
Sir before moving forward I would like to say that 1 is also odd number but why you didn't add 5 where as you add 5 with 3 . Explain it to me make me out of doubt sir 🤔🙏😊.
Cool bro thamks
Thank youuuu sir 😊😊
I looked at the number and thought what system would I make up to Multiply by 5. I just added 0 to the right and then 1/2 the number. This is just easier math to me. The 0 to multiply by 10 and 5 is 1/2 that. If the number is odd you 1/2 the number and add 5 to the number to the right.
So when he explained it, it seemed similar to what I just figured out. Never really thought about it before this though. Going to have to think about the others and learn the system. :)
Your video are Amazing👍👍👍👍
Thank u sir part 2 plz
Please make more videos which are helpful in competitive exams 🙏🏻
( basic maths & reasoning)
sure ! this method is also very useful for competitive exams!
Can you make more of this type of videos
Thank you so much, I was able to understand well :)
Excellent lesson, thank you 👌👍
Thank you ❤ for your valuable message
Wonder ful!
Part 2 please
Thanks so much!
This is good bro love it
Thanks ❤ sir
Nice video sir
All izzz welll!!!
Waiting for more of this series
very very interesting!
Thank you sir! ❤
Is there part 2 ?
Waiting for part 2
Thanks
Welcome
Video for balance number bro
Thank you for this lesson...it helps me a lot even during i have a hard time calculating..Hoping for more math videos
Can we count it from the front ?
If i count number with mind and count it from behind sometimes it confusing to rearrange the number
can you make a video on easy squares
till 100
7:28 zero is not a even number..it depends upon where it comes,that decides whether it is odd or even.
it is tho, the definirion of an even number is that it can be written as 2×n,n being a natural number, 0 is a natural number so 2×0=0 means 0 is even but being odd means the number can be written as 2n+1 wich 0 cannot be written as if n is a natural number
Hi sir we can do it another mathed
781×5
781×10= 7810/2
3905
We can do it, but this is quite a difficult or more time consuming method
Explanation is great. But i didn't understand one thing. How could the Trachtenberg method work in muliplication of 5, with 793 × 5?
As per the rule, the neighbour of 3 is zero. But how did 5 appear in the ones place? Can you please explain? 👍
I think it's because he meant that +5 if the number (3) is odd
He didn't mean that +5 if the neighbor is odd
Because 3 is odd he added 5 to 0
Tq bro@@timeforsoul7776
Very helpful
multipilcation with 6 is most confusing sir!
Nice
Thanks
Really helpful, make more videos thank you.
The last question you told to do ourselves pls can you solve and show it
Apply Bruce Lee's philosophy , do not fear the man who practices a thousand punches once, but the one who practices one punch a thousand times. Drill the Mind Sets for each RULE. With simple patience, practice, micro naps, throughout years you are supposed to learn them in your formative years, the world of mathematics in algebra and other maths will be open to you. Woo! Physics! Math is a language of truth. Let it be your friend.
9:15 is it +5 because 1 is odd or (1 x 2)+1=3, 3 is odd?????
Came because of Mary Adler
Stayed for MathOGenius
WOW
5:28 half of '3' is '1', 1 is an odd Number, why don't you add 5 ?
Because 4 isn't odd,not one
@@Baldingkitty ooh so it depends on the neighbor thanks my man I was not able to make sense of it
Lower ceiling = half
Can you pls share us a study routine 😊
How do u do 17 * 11
Thank You Very Much Bro Advanced Happy 400k 🎉🎉
Thank you, does a pattern develop? I was surprised there were methods for 11 and 12 rather than extending the methods for 1-9 to 2-digit numbers.
793x3=. 3965
Thank You So Much Sir, It Helps Me A Lot
598 X 5 is not working with that method. Any explanation?
❤
Bro make more videos
@9:36 8 is even, then why add 5?
Because the starting number that is 3 is uneven Because number means the start in here, dude I am 12 step up your game
We will become calculator with this one 🗣️🗣️🗣️
thanks for calculation ..got it ..thankyou! ..just was watching gifted ...hahahha
482 × 5= 0142 # 2410.?
Plz make a video on division techniques to solve data interpretation questions
Wow
46426271524161752565255×532535161612226 in 39 seconds, thanks 😊😊😊
Can u makethe blob math game on ios?
Cant, getting it on ios store is expensive
@@mathOgeniusis steam possible?
I can't solve 98834 I got the first part but how did the 7 came in ?.
So how did the 3 came to the neighbour of 2 and 6 ??( Sorry for my English)
Half of the number 6is 3
Have you ever heard about Vedic Math?
How to do 498×5
Create link for US shopping too so you can earn from that as well
I’ve been knowing this 😭 I thought it was something different
He says the keys are universal. There aren't special rules for each specific number, then shows us a bunch of special rules for each specific number 🤔
Great question!
in a previous video in one eg multiply 54x56 very fast but with a condition that starting numbers are same and ending digits add to 10. but for this method there are no conditions like that. if you remember a key for specific number then you can multiply any number with that. its like a table for that number.
Thank u so much ❤@@mathOgenius
Didn't understand neighbour system pls help 😔
This is so cool!
Half of 3 is 1, 5 is 2, 7 is 3, 9 is 4
And what's the half of 1, how do we write it in this method?
One day I will get marked
What’s half of 3 guys?
math
8379 * 5 = 41895. I,m stuck at 8. Please let me know how can I get 41 to complete the calc?
793 * 5 = 3965, again the same problem...
You are highly appreciated for the efforts you put in to educate us. 🙏❤🧡❤🙏
1/2 of 3 =1 (8 - even -> no additional 5) and 1/2 of 8 = 4 (0 - also even so no additional 5),
the same for the second number
Why don’t schools teach this
I agree but is it cuz their not that smart
I agree
I know everyone here knew about this from GIFTED movie
I dislike when people try to reinent the wheel only to make it more complicated and longer or harder/more complicated
Sir pls explain how this rule they had formed like "Add a neighbour " to multiply with 11
smart pants
How to Calculate faster than a Calculator? | Mental Maths | (Part -1, 47 × 25 in a second)|
ruclips.net/video/PB_3uOe5BRo/видео.html
"🅿️ℹ️N"❓ 🅿️LE🅰️SE❓
wonderful
Bruh he's an human calculator just like me don't you know ²2 or ³3
Easy 4 and 9😊
Very nicely explained ❤
Why dont school teach this to us
I dont understand :(
Riddle-what is a horse living in the next door?
Sir l didn't understand very much