Hey people, note this: * Any 3 *all different* numbers. Including 0. * After the first substraction: ignore the negative (-) and consider any two digit number as a three digit number filling with a zero. Example 1: 506-605=-99 change -99 to 099. Its reverse is 990. Finally: 099+990=1089. Example 2: 012-210=-198. change it to 198. Finally: 198+891=1089. Have fun! :)

Pro tip - don't ask same person twice.

This got me laid. Thank you

I've watched all your videos .I love magic. Since I was 15.57 now...your very beautiful. I learned a lot. Don't stop practicing magic..

Represent the number as: 1*X + 10*Y + 100*Z. The inverse would be: 1*Z + 10*Y + 100*X. Subtract the inverse and get: 99*Z - 99*X. Also can be written as: 99*(Z-X). Lets replace (Z-X) with N: 99*N. Lets rewrite as: 100*N - N. Lets rewrite as 100*(N-1) + 100 - N. Lets rewrite as 100*(N-1) + 90 + (10-N). Thus the inverse is: 100*(10-N) + 90 + (N-1). Add these together and we get: 99*N + 1000 - 100*N + 90 + N - 1. Squish together and get: 1000 + 90 - 1 = 1089 QED

I love the way you say "let's learn". I only wish my teachers in school would have encouraged me like you have.

It's really a stretch to make it work when the difference is 99. For example 231-132=99. You'd need to see the 99 as 099, then reverse to 990. Adding back 990 to 99 does get you 1089.

1089 and 2178 are reverse-divisible numbers; the only four-digit numbers that divide their reverse.

If abc is the 3 different digit number we can write it algebraically as 100a+10b+c Then the reverse digit number will be 100c+10b+a Now subtract the reverse digit number from original one (100a+10b+c)-(100c+10b+a) The new number will be (100-1)a+(10-10)b+(1-100)c Or 99a-99c Or *99(a-c)* ..... (1) Since a and c are single digit numbers i.e a, b belongs [0,1,2,3,4,5,6,7,8,9] So (a-c) will also be a single digit number. [But a≠0 because abc is a 3 digit number] Henc (a-c) belongs to [1,2,3,4,5,6,7,8,9] _We excluded 0 because a-c=0 if and only if a=c And we know that a,b and c are three different digits. a≠c Now lets substitute the other possible values of (a-c) one by one For *a-c=1* (1)=> 99×1=99 Now add reverse 99+99=198 Add reverse digit number again 198+891=1089 For *a-c=2* (1)=> 99×2=198 Now add reversed digits 198+891=1089 For *a-c=3* (1)=> 99×3=297 Now add reversed digits 297+792=1089 For *a-c=4* (1)=> 99×4=396 Now add reversed digits 396+693=1089 For *a-c=5* (1)=> 99×5=495 Now add reversed digits 495+594=1089 For *a-c=6* (1)=> 99×6=594 Now add reversed digits 594+495=1089 For *a-c=7* (1)=> 99×7=693 Now add reversed digits 693+396=1089 For *a-c=8* (1)=> 99×8=792 Now add reversed digits 792+297=1089 For *a-c=9* (1)=> 99×9=891 Now add reversed digits 891+198=1089 Similarly for negative values of (a-c) Ignore the negative we will conclude with the same answers. I have tried to verify it by putting all possible values. I will be more than grateful if you share your kind opinion or correction.

Very nice, this will score many free drinks at the pub for me here in Ireland. Thanks for always offering easy doable tips and tricks. Love the channel

The new definition of beauty.

Such a delight sitting here here india and want to learn a little 🎉 fun skill to pass your my only way to learn really liked your videos and my favourige vedio of uours is sybic cut which was done 7 years ago !!!!!!!!! But nonethless you look toooo beautiful thank you man😅❤

When I was 8 I discovered that you can take any number larger than 9 and up to infinity and subtract its opposite and that number is ALWAYS perfectly divisible by 9, or 3 because 3 squared is obviously 9

453 - 354 = 99 to in some cases where there is a difference of 1 between first and last digit you would have to add 0 to the first result to get 1089 but it will still work just add extra step by saying: " Add 0 in the end if you got a two digit result".

When 3rd digit must finish with 1 ....then your formula 🏎️ wins...

Three, that's the magic number, yes it is! It's the magic number!🕷️🕸️

Three different numbers is key, dont forget that.

This was discovered by Ramanujan while sitting in a taxi... The Math Genius of the millennia...

You are such a talented and wonderfully unique gal! And so beautiful! Wow! Your hands move with god given talent!

198 is also a magic number, connected to same rule. If we choose a 3 digits ending with 0, by subtracting reverse, they get 99, by adding reverse it becomes 198. Eg: 120 120-021 =99 99 +99 =180.

Okay, now let's learn how to make that paper box.

Mathematical explanation: Let's say that the hundreds digit is greater than the units digit (if its the other way you will need to negate the result which is basically like negating the first operation and -(x-y)=y-x so we can continue as if it was this way to begin with) and let's call the hundreds digit "a" and the units digit "b" so a>b. I will also represent the numbers with their digits divided by commas so I would be able to represent digits with algebraic expressions (132=1,3,2) Step #1: subtract the reverse: Let's separate the subtraction into steps: A. Subtract the middle digit: the middle digit will be subtracted by itself so it does not matter. We are left with a,0,b - b,0,a B: Subtract the hundreds digit: as a>b we know that the result will only affect the hundreds digit. Now we are left with (a-b),0,b - a C: Subtract the units digit: as b

I started learning magic now , thanks

I like the papers unfolding sound and her voice

Exception:- Don't take the same number on first and 3rd digit 😊

Love the way she says "LetsLearn"❤

My daughters loved it

Stuff i used to do in 4th grade...

This concept has already describe by our great mathematician RAMANUJAN

I paint cars for one job, but I work in a bar for my second job and this simple thing has blown a few minds. It’s fun to see the reaction on new customers. It’s a great way to generate fun conversation and I don’t know how many will start watching your channel, but the comments I get have been fantastic. I’ve been using a few card tricks and it’s brought in new people as well. Thank you so much for teaching me. Magic brings the inner child out in everyone. Thank you so much again! I do know one card trick, that you may know, and if I get my internet connection back up and running after my home improvements I’ll make you a video to show you. I can’t wait. Hopefully you won’t know it, but I’m sure you do. Unfortunately I never new it’s name though. I’ll practice it more so it will be as seamless as possible like your videos. Take care❤

I'll scroll this one up 🌚🌚🌚💀 thanks

I like your north face t shirt ❤

For 3 digit its 1089 For 4 digit its 10890 For 5 digit its 109890 For 6 digit its 1098900 And carry on.....if we do the same process....😍😍😍

Here's why it happens: 1. **Three-Digit Number**: Consider any three-digit number where the first and last digits differ by at least two. Let's call it ABC, where A, B, and C are its digits. 2. **Reversing and Subtracting**: When you reverse this number, you get CBA. Subtracting CBA from ABC (assuming A is greater than C) gives a new number. This subtraction aligns with the form (100A + 10B + C) - (100C + 10B + A) = 99A - 99C. 3. **Result of Subtraction**: Simplifying 99A - 99C, you get 99(A - C). Since A and C are at least two digits apart, the minimum value for (A - C) is 2 (e.g., if A is 3 and C is 1), and the maximum is 9 (e.g., if A is 9 and C is 0). This results in a number that is two digits long, and its first digit is always 9. 4. **Intermediate Number Characteristics**: The intermediate number (after subtraction but before adding the reverse) is always of the form 9X9, where X is a digit. This is because the hundreds and units place will always be 9 due to the subtraction process described above. 5. **Reversing the Intermediate Number**: When you reverse this number, it becomes 9X9 again, as reversing doesn't change the position of the digits due to its symmetry. 6. **Final Sum**: Adding the intermediate number and its reverse, both being 9X9, will always lead to 1089. This is because 900 + 90 + 9 equals 999, and adding it to another 999 (since the reverse is the same) results in 1089. In summary, the specific properties of base-10 subtraction and the constraints placed on the original number (three digits, first and last digits differ by at least two) ensure that this trick works, leading to the consistent result of 1089.

Cool

Thank You, i checked same with 2 different numbers and its coming to 99😊. Great!

*Let three digit number:* xyz= 100x +10y+ z *Reverse:* zyx = 100z + 10y + x *Subtract:* xyz-zyx = a9b After subtraction, the result is a9b.. where Middle digit is always 9 and sum of a and b is always 9. *Reverse again:* b9a *Add:* a9b + b9a = (a+b)/18/(a+b) We know a+b = 9 Let's put the values: 9/18/9.. Carry 1 of 18 to hundredth place, so it becomes 10/8/9.. i.e. 1089. No it's not magic.. simple maths...

Magic with maths... Kudos to S Ramanujan

WOW you are magician 😮

Beautiful. Thanks a lot.

She's using Google Pixel. Instant like

90s baby here. When the gameboy got boring i used to play with a calculator and discovered this when i was a wee kid. I thought i was a genius xD showed everyone in school the next day

❤❤you are great. So nice smile teacher. Amarr. Magician. I practice every thing you teach❤. My guru Devi you are.

U r amazing ❤

Well done…. This blew my daughter mind away 😅

I love your voice, it's giving me chills

Wow amazing ...magic number I'll try several times and it work..😮😂I will become a real magician ..thanks for your tips.

This magic actually works ❤❤

love your voice ❣️

She has a soothing voice

The edge case is when the first difference is less than three digits it'll be a problem

THIS IS A REAL MAGIC😮😮

Every time u learn from ma'am it seems easy because of let's learn ❤️

The phenomenon you're describing with the number 1089 is a well-known mathematical trick. It works with most three-digit numbers, as long as the first and last digits differ by at least two. Here's how it works: Choose any three-digit number where the digits are not all the same (like 651). Reverse the digits to form a new number (156 from 651). Subtract the smaller number from the larger number (651 - 156 = 495). Reverse the digits of this result (594 from 495). Add this number to the original difference (495 + 594). The final result is almost always 1089. This trick works because of the properties of number manipulation and digit rearrangement

It works only when the extreme numbers differ by more than one

What if they have all three digits the same? E.g - If they pick 111, you subtract the reverse, 111. But then you get 0. And 0 + 0 isn’t 1089

If they get a negative number after the first step, ignoring it is a bad idea, because if they don't clear it out and re-type it correctly as a positive number, this will not work.

Bro my mother chose 333 and I got roasted so bad 💀 Now a friend chose 231 💀💀💀

Mam give us more this number tricks kids show interest in maths.. ❤❤❤

That is soo cool

When I first heard this, I was told no repeat numbers. But it doesn't work if you say: 132 or 796 , 495, 738, etc. If the 1st and 3rd numbers are sequential, the inverce makes 99.

1089 is also knowns as Ramanujan's no. He was a great mathematician and he gave it❤😊

1. Chosen number by audience: 100x +10y + z (A). The criteria are x≠y≠z; x, y, and z are integers with 1

Also if you do the first part where the subtraction happens, you can predict the result of the operation if you know the first or last digit of it. middle digit is always 9 and the sum of the other two digits is always 9. So in the example of the video we have 495, knowing 5 you can find 4 and construct 495. People will be surprised. The only case where this doesn't work is with 3 digit numbers where all digits are the same (eg 444, 888 etc)

I wanted to know how you made that cute box out of the prediction sheet. Can you share, please? 🥺 all your videos are so precious! Loveeee ❤❤

Wow her children gonna be magicians and mathematicians!!

My goodness , it work 😮

Lol I broke it straight away with my first number, haha

Your trick breaks if you put the smallest number in the middle. The result ends up 99 or -99., which then adds up to 198, not 1089.

This doesn't work if the number is followed by the same digits at the start and end, eg 565, if you subtract the reverse the result is 0.

I’m more interested in how she made that box

I chose the number 989 now do that shit again

You can technically do it with larger than 3 digit numbers, but you need to start adding in a decimal place to make it equal 1089. Otherwise you start getting things like 108090.

Kon kon video dekhne ke baad apne phone ke calculator me check karne gaya 😂😂😂😂😂😂

I agreed. Because just now I tried it

Wow im a magician now ✨🪄🔮🧙🏻

Thanks for this...now I gonna shine in the evening gatherings😎

I am doing this in my childhood 😂 and I fool my friends many time to see this 😁😂

This number is invented by an Indian mathematician Mr. Shree ramanujan. This number is called ramanujan number ❤

Do this with 999🗿🤝

Let the unique digits of the number be *x* , *y* , *z* in order. So the number is: *100x + 10y + z* And the reverse of it is: *100z + 10y + x* Subtracting the reverse from original gives: *99(x-z)* If *x>z* let *t=x-z* , else let *t=z-x* So the number we have, ignoring the sign, is: *99(t) = 100(t) - t* *= 100(t-1+1) - t* *= 100(t-1) + 100 - t* *= 100(t-1) + 10(9) +(10 - t)* Possible values of *t* : 1 to 9 *(t-1)* : 0 to 8 *(10 - t)* : 1 to 9 so they are single digits. So the number we have is: *100(p) + 10(9) + q* where *p = (t-1)* *q = (10-t)* The reverse of this number is: *100q + 10(9) + p* Adding these together, we have: *101(p + q) + 180* *= 101(t-1 + 10-t) + 180* *= 101(9) + 180* *= 1089*

Don't talk or ask an Engineer or Mathematician...they'll prove you wrong before playing

Love 💕 u dude

❤ very good 👍

We can ask them if the sum is negative you have to subtract it by the opposite of your answer this will give you -1089

I couldn't help but notice "substract". Thought I had learnt wrong😅

1089 is a constant in this series of addition.

Guys, can you believe a math problem designed to work itself out to 1089 always results in 1089?!? Magic, bro.

She makes me happy every time she pops up on my feed.

I have written a program to check all the 3 digits numbers. Only 640 have 1089 answers. The rest is incorrect because it will encounter a palindrome during the process.

So true I had tried it trice and get the same result 1089 😅

I like the video with your son.

I didnt knew such kind people existed...i have been watching it lately and i like it...tbh those 5 to 10 min magic vid do not teach me magic as much your shorts does!!your smile is too decent

This was given by great Indian Mathematician Srinivas Ramanujan ❤

3 different numbers even don't need. You can assume atleast 2 same numbers either on left side of 3 digit set or at right side of them, for example 221 or 122 or 488 or 884. These sets of numbers also work.

Legends who got 2 same numbers like 99 and couldn't reverse it

She said 3 different numbers!!! It worked I can’t believe it 🤣

Wonderful play with numbers ❤ Your videos are so engaging 😍

It works in some cases only. Try out 121 120 etc

I played this with my father, he chose 786 and it didnt work🥲😅 try by urself