Guess Your Age Trick - Revealed

My mom asked me to explain to her this "miraculous" trick she received by email and was shocked to discover is capable to expose her age.

Try it - it will guess your age as well:

  • What is your favorite day of the week? For Monday - pick number 1, for Tuesday - 2, Wednesday - 3, Thursday - 4, ..., Sunday - 7.

  • Multiply the number you got above by 50.

  • Add to the result 44.

  • Multiply it by 200.

  • If you already had your birthday this year, add to your number 109. If you did not have your birthday this year, add 108.

  • Deduct the year you were born from the resulting number.

Look at the long result. Here is the trick:
First digit of this number is your favorite day of the week.
Last two (or one) digits of this number is ... your age!

This trick expires at the end of 2009. And it is much easier than is sounds.
Here is explanation how it works:

  • You pick number N, where 1 <= N <= 7

  • 50 x N

  • 50 x N + 44

  • 200 x (50 x N + 44) = 10,000 x N + 8,800

  • 10,000 x N = N0,000 (where N is the digit corresponding to your favorite day of the week)

  • If it is 2009, most probably your birthday this year already passed. Add 109 to the number above. You got: N0,000 + 8,800 + 109 = N8,909

  • Look at the resulting number: N8,909
    See how the first digit is exactly the digit your picked at the beginning. Anything you pick N to be (from 1 to 7), it will be the first digit of the resulting number. Here is the first part of the trick.

  • Now, remember that if you take 2009 and deduct the year you were born, you get your age. If you take 3009 or 8009 and deduct the year you were born, the last digits will still show you age. When you deduct your age from the number you got above - N8,909 - the last two digits are still showing your age. This is the second part of the trick for you.

  • Now you are ready to play the trick on anyone around you.

But beware: if your grandma is lucky to be older than 99, and you want to play this trick on her, you will need to change it a bit. You will need 3 last digits, and not two. Right now for a 100 year old person who was born in 1909, you take N8,909 and deduct 1,909, you get N7,000. Last three digits will of course compliment your grandma, but won't do the trick. You need this 000 be 100. So, add one more step: (7) and ask her to add 100 to the resulting number that she got.

Why the trick expires in 2009? Because in 2010 you would need to add 110/109 instead of 109/108 in the step before last. You need your "magic" resulting number (N8,909) to end with the current calendar year digits, be it 09 or 10.

But for the next two weeks you don't need to worry about it. Just copy the steps above and spook your friends and relatives at the Holiday party.


  1. Many thanks to Gary R. for pointing out my mistake in a 100 year old grandma math. It is fixed now. Please never ever hesitate to tell me when I am wrong. We are all just playing around with math here.

    1. How I Got My Lover Back {}...

      What a wonderful and a straight forward spell caster that has brought back joy and happiness into my life after i saw a post on how he helped a lady called Nicole Morgan; i decided to contact him for help, when i told this God sent man Dr Eboehi on how my lover left me for 2 years without calling nor texting me, When i shared this my sad experience with Dr Eboehi he said everything would be okay within 3 days i was like am i sure what this man is saying is real, So i decided to give him a try and at first i was thinking he was a scam and i taught he was like other spell casters who come online to add pain to people's life not knowing there feelings but to make money, this great man Dr Eboehi is never like that because he is for good and to make people happy with the one they love, am just so happy, Even before the 3 days i just got a call from a man who has left me for 2 years saying that he his sorry and that he wants me back to his life i was so happy, He invited me for a dinner which i met with him there and we both talked, he said he wants to prove that he would never leave me for any other lady he engaged me and also made me had access to all his account am so happy all thanks goes to this great man Dr Eboehi a man who has brought back joy to my life, friends that need help in getting their lover's back i would advice you contact Dr Eboehi via email: because he is the right man to help you get your problem solved.

      Thanks... Stacy Donald

  2. I was doing this and was bummed when it did not come up with my correct age, then I read that you said it expires in 2009! Of course it didn't work. I tried it with the 2010 numbers and, of course, it worked fine. =)

  3. I read that it expires in 2009 last, and it said I am 7,423! I tried it with the 2010 numbers and it worked great! I can't wait to show of my "talent"!

    1. Well currently it is 5:43 pm in Tracy California 95391. It is a Wednesday, on the 20th of November. It is 2013, so this trick dose not work for me because it is not 2009 any more. In fact it is almost 2014..... the world has not ended yet. o_o

  4. What are the 2012 numbers Amber K?

  5. it doesn't even work! i am 14 and the age was 11. and there was a 9 in the middle of my answer!

    1. Look carefully at the trick details - I published it a few years ago and in the middle of the description it says: "This trick expires at the end of 2009"

      Why the trick expires in 2009? Because in 2010 you need to add 110/109 instead of 109/108 in the step before last. You need your "magic" resulting number (N8,909) to end with the current calendar year digits, be it 09 or 10.

      Check out other puzzles and stories - most of them work universally, anytime and anywhere.

      Thanks for playing!

  6. This doesn't work. I tried it and i looked at the last 2 digits of that long number but it didn't say my age. I did what they said. Didn't work

    - DayleLucy101

  7. My mom asked me to explain to her this "miraculous" help me with math trick she received by email and was shocked to discover is capable to expose her age.

  8. It said I was 7 and I'm 11 but I guess that was the age I was in 2009 ;/

  9. I love these "I will guess your AGE" tricks... it seems so uncredible and still it works each time :) The one above is good. I have another one that I made into a youtube video to share with everyone. You can see it here:

    Let me know what you think and whether you have more of these. I love them!
    Best, Chris

  10. You all are gay fags that have no life. Hey! Let's try to get off the internet and get a girlfriend. Then, after that, GET A LIFE!

  11. hey guys , this is just a rip off

  12. In line Coach Outlet Online is bringing Michael Kors Outlet unique Coach Factory Outlet to a Toms Shoes USA shoe for Cheap Jerseys Spring/Michael Kors Outlet 2014 Coach Factory Outlet, and this Coach Outlet, it’s a Coach Outlet. The Coach Outlet Sale Sandal Giuseppe Zanotti Outlet.Supermodel mom Coach Factory Outlet was Coach Factory Outlet Online being all kinds of hot this weekend Coach Outlet she Coach Store Online out in a Michael Kors Outlet-turning, Celine Outlet I did, I was Celine Bags possessed by Fitflops Flipflops suit madness.Fitflops USA-there string Michael Kors during Michael Kors Store vacation in Tomss Hoes Bahamas. Fitflop Footwear by her family, the 40-year-old looked happy and relaxed - Fitflops Outlet, uh, did we Fitflops Sandals super hot? - as she Giuseppe Zanotti by the pool.I've Giuseppe Zanotti Designer making my own vanilla extract for years. I love it! It's cost-effective, and in my opinion, Vanilla extract is also (easily) the most used extract in my Prada Outlet , sort of pretty (although it kind of looks like spiders too) tastes way better than imitation vanilla extract.

  13. Superb! To articulate the precision this is a fine post concerning this topic. I got a wholesome solution from here. boost your bust reviews | comment maigrir des cuisses


  14. robinsonbuckler@yahoo. com is a wonderful spell caster. Very trustworthy, My husband cheated on me for Almost for three years. he ignore me for several months and left me with nothing, but i am happy today that Robinson brought my husband back, I am so happy, Now my husband is all mine again. I can now say I'm happy again. Great spell from Robinson buckler, Robinson is genuine. I truly believe in him and his spells. he is a professional. I really enjoyed the result which i got, his love spell is marvelous, he is truly gifted, his love spell has brought me happiness, I am extremely pleased, it worked out to my test, he has the most powerful love spell, I recommend his love spell to anyone who is ready to get his or her lover back or you can reach him on his mobile + 19715126745