111 year has interesting oddity: Take your birth year...

[OneGrassRoot]

(last 2 digits) + the age you turn this year.

It equals 111.

It's true for all examples I can come up with.

:shrug:

:hi:

[hermetic]

1. I love math

There are other mystical equations like that, I just can't remember any of them right now. :hi:

[Ricochet21]

2. A phenomenal book on the subject and the meanings of the digits 0 though 10

is Michael Schneider's "A Beginner's Guide to Constructing the Universe: Mathematical Archetypes of Nature, Art, and Science"

Unbelievably well written and easy to understand. Mind-opening. :hi:

Here's the man: http://www.huffingtonpost.com/2010/12/16/ancient-egypt-math-computer_n_797806.html

[lildreamer316]

3. Woooooah!

Ok, that's weird and cool...

[MorningGlow]

4. Kewl

I love teaching kids about the "magic" number 9--how you get 9 every time you multiply 9 by a number and add the product's digits (eg 9 x 8 = 72; 7 + 2 = 9) and the mirroring of the 9 times table (1 x 9 = 09 and 9 x 10 = 90; 2 x 9 = 18 and 9 x 9 = 81; 3 x 9 = 27 and 9 x 8 = 72 etc.) On and on and on. They're always fascinated (and for good reason).

[WolverineDG]

6. that's an old number sense trick

my brother taught me that & others when I was struggling with math.

You can use the same trick with 3, btw.

dg

[indimuse]

5. coool!

Thank you~ ;)