Have fun with this cool Trick!

You are a really really smart person, most of my math problems are solved by you , Love from Fiji Islands , Thank you and stay Safe.

Thank you so much! I just started watching 5 mins ago and I love your content its so help full to me especially because I suck at maths and I hate it but you explain so so so so well it makes everything so so so so much clear than before!! you deserve a sub and like! I think we need more people like you! keep up the good work! :)

Sir, You are the one of the finest math's teacher on KZfaq... :)

The easiest way to do this is to prememorize all 100 year values from 00 to 99. Then I just add that to the century code and reduce mod7 and finally add that to a prememorized value for each of the possible 366 dates. For example, June 15, 2012 would simply be: 2+2+1=5, so Friday! June 15 always has a value of 2 (prememorized) 2000's has a century code of 2 and, year 12 always has a value of 1 (prememorized) 2+2+1=5, Friday! Anytime leapyear happens just subtract one from the answer for January or February only, all other months stay the same! I calculate any day of the week using my method in less than a second, almost instantly to 2 seconds tops if I'm thinking a bit. I do both the Julian and Gregorian calendars in both AD and BC infinitely into the past or the future.

very cool trick, thanks mathOgenius, you are actually a math genius :D

You are amazing!! TYSM!! Lots of love from SL

Your flow of video is got damn good now! ;)

This channel is a gem 💎

I honestly think that u shud go to any of the TV program where maths is given importance❤️ Go 100K Brudah...!!

You are doing a great job 👍 keep it up 🙂

Every 28 years the calendar repeat itself. Hence the first step for year should be to subtract 28, 56 or 84 from the last 2 digits of the year. Adding 25% to get extra numbers is amazing. Wish I knew why it works

You are a genius. Great work

Oh, I accidentally viewed this video and Im a software developer and this trick/algorithm can help me a lot in the future. I didn't know this exists. Thank you so much!

gr8 input. i like the most .keep posting

you are by far the easiest to understand math teacher!

This is deceptively simple. Definitely gonna impress my friends with this. Thank you!

You are the best maths trick teacher in youtube thank you

YOUU ARE A GENIUS. THANKYOU SO MUCH

I wanna ask if there is a fast method for multiplying, adding, and subtracting decimals

Amazing trick sir thanks 😊

Congrats on 100k bro

Jan 1, 2030. My method requires a bit more memorization but the payoff is super fast and easy calculations like sometimes less than one second maximum 2 seconds! For me a date like Jan 1 is a prememorized value of -2, 2000-2099 has a century code value of 2, and the year 30 always has a value of 2. So, in any order i add -2+2+2=2, or even more advanced, looking ahead that the -2 cancels out with any one of the other the values of 2, so just 0+2=2, or simply 2 without considering the cancelled values, so Tuesday! And whenever leap year, no need to worry about odd days or anything special just subtract 1 from the final answer if January or February, March thru December no changes are necessary.

Shall try to do stay blessed thank you for sharing from Sri Lanka

Exellent trick thanku so much

個人認為，你們是目前世界上最好的數學天才。多謝分享。多謝。

Superb calucation thank you

I have recently found your channel have to say You are dammmmm amazing 👏😉😀

Your voice Is so relaxing and you explain so calmly. When I watch Your videos I feel like I am meditating and I learn so much

Great.Keep it up😊😊

This is so powerful Thanks sir

You are the best in mental math

Wow awesome good idea 💡!!!

Good stufff man

i love rhis video...thanks bro

I do other cool tricks that aren't heard of very often, for example since this calendar math can be viewed as just a simple addition problem, we can also solve for a missing value using subtraction! For example, if we already know the day of the week to be Friday for example, we can solve for a possible month/months or even a date from 1 to 31 or even a possible year or century. Example: Which month or months did Friday the 13th fall on in 1899? 1899 was a Tuesday year (-2+4=2) or (5-3=2). So, Tuesday was the 10th since 3 days later was Friday the 13th. So, 2+13+x=5 (Friday) x=4 because 15+(-10)=5 -10+14=4 Mod7 arithmetic Only January and October had a month code of 4 😁. So it only happened twice that year, in January and in October. Also we can say more intuitively that since 1899 was a Tuesday year, and Friday being 3 days later, which month/months had the Doomsday of 3,10,17,24,31? and obviously that is only January and October. If the question changed to what were all of the Fridays in January and October for example in 1899? We can say "the 6th, 13th, 20th, and 27th" If someone were to instead ask for example on Friday the 13th from 1883 to 1900 what year/years did that happen? We can say "only in 1893 and 1899" In this situation we just needed to find the missing year code of (4 or -3) and only 93 and 99 have that year code in that date range. Likewise, we could have instead solved for the century 😉 also if already given a year.

Thanks man😊🎉❤❤

You are just awsome

Thank you sir ❤

Solving math in mind is make us feel cool.

Maja aa gya😁 Bhut maja aa rha hai ase tricks sekh k Mehrbangi sir ase bedio upload karna k lee a🙂

Good work sir 😍

Superb man

Salute to you sir....

this man is a genius himself

Thankyou sir 😊

Amazing sir

I had been learning this from cls 8 in my Mental Ability Test (MAT) in my coaching institute.

Nice mr Paryag Sharma sir ❤

Dec 26 2020..first method.. Reminder is 4..but in calender its different

Plz make a series on reasoning

you are so good

amazing ! thats all i may say

Thanks

Can you give some tips tricks for fast multiplication and division of point numbers (like 1/99=?)

OMMS ( Oh My Maths and Science) it is literally amazing trick ( your trick dude)

Bhaiya :Math is everything !!!! Me : same ..... We love maths 🙏🙏🙏

may i say one thing (if u don't mind)?... hey MR what r u doing here!!!!??? u must go to participate the upcoming international mental competition, not just to win but also to show your fantastic ability of memorizing...

You are super OP

Thanks!

So how do you calculate the day before 1752? How do you adjust for 11 days as you mentioned?

Nice video

Sir, Your skill is Awesome.Appreciations. I have still an easier method by which we can calculate 20 queries in just 5 minutes all by mental calculations. How much time you will take by your method? Please reply. Thank you.

I just simply memorized all 366 possible dates as a value from -3 to 3. Then I just add that to one of 4 possible century codes of 2,0,-2, or 3 and finally add that to a prememorized value for each of the 100 years from 00 to 99. For example, my birthdate of March 19, 1982 goes: -2+3-3=-2 so Friday! Or shortcutting, i just cancel the 3 and -3, and -2 is Friday!

How to find dates before 1752 considering the eleven day lag?

How do you get the REM value

Thank you very much sir we need for 21st century only cuz we may not be alive for and further calculation😂😂 very well explained ❤

Hello bro nice video

How do you know what year is a leap year just be looking at the date?

You're indeed Superhuman 🥰😃😀👍👍

Can you explain 27 September 1992,it doesn't work for me. It shows Thursday repeatedly

Hi great video. What do I do when numbers are very low, like 2000-2005? I get fractions when I divide by 7 at the end

Oh My Goodness This Guy Is A God For Me Cuz I Used to Hate Math​ and now I love it. Thanks! My guy

Basic Method: 2012 for eexample. 12 x 0.25 = 3. Leap year so 2. 2 + 12 = 14. 14/7 =2. 2 is code for tuesday. But calnder for jan 1st 2012 shows sudnay?

do u have ways to solve linear simultaneous equations ?

UR amazing

I like that how you talk English it is like quitely speaking English

You Legend

So should we do no Know??

How would I calculate the day on 1 February 2080 when all codes add up to less than 7

@mathOgenius hi i love your videos! verry cool but im trying to do one of my siblings dates which is july 20, 2010 but im getting monday but the calender says its tuesday could you please see if im doing something wrong thank you!

Sharma ji ka ladka maths mei awwal hai!!

Sir, how about years ending in 00 - 03 such as 2000 - 2003?

How are you so good at math

What are tidal forces? pls explain me .

how do i know if its a leap year?

Can you do July 4, 2024. It's a leap year, so based on your computation, you have to deduct 1. So 24 x 1.25 = 30, then subtract 1 which is = 29. Then 29+5+4 = 38. 38 divided by 7 = 5 with a remainder of 3. So it should be Wednesday. But actually, looking at the calendar, it is actually Thursday. Can you explain further? Thanks!

How do we calculate the day when all codes add up to less than 7. Ex: 1 Jan 2080. Thanks

Which day was on 29 dec 2000

Yessssssssssss

I learned this in 1997. But the month numbers are different. I think maybe it's because this way is based on the 2000's, and the way I learned is based on the 1900's.

How do you do the calendar which day is 2022

Wow

Do you always -1 on the day when its a leap year? I was trying my friends bday and kept getting a day off, it was a leap year.

❤

How do we know that it's a leap year?

What is the year code for 1700 ?

How would you calculate what day is 1 January 2005. Thanks

5/5/2005 is 6÷7 to get the core #?

bro Pls reply me What is your qualifications in college .....in math.....reply