Wednesday, April 18, 2007

Simpsons is Educational!?!?

When my parents think of the Simpsons, they think of yellow people who tell dirty jokes. But beneath all the political jokes and grossness, is mathematics. Yes you heard right, mathematics.

For more information click here.

Sunday, April 8, 2007

Trick of the 11s

Try to do these math problems quick.

1x11=
2x11=
3x11=
12x11=
13x11=
25x11=
32x11=
99x11=




Those last few got pretty hard unless if you know the trick of the 11s.

Example: 12 (I will only show the answer in the example.)
x11 (You can only do this with 2 digit numbers)
  1. Drop down the 1s digit in the non-11 number, this is the ones digit in the answer. 2
  2. Add the two digits together in the non-11 number to get the tens digit. 32
  3. Drop down the tens digit to get the digit in the hunderds place. 132

Easy as that!

A few exceptions:

If in step two, the numbers add up to be more then ten, then only use the ones digit and add one to the tens digit in step three.

~Sorry for the bad tutorial. Just type "Multiplying by 11" into google.

Thursday, April 5, 2007

Rubik's Cube- Blind Folded

Interesting fact: There are 519,024,039,293,878,272,000 different combinations on a rubik's cube. Only ONE combination is correct!

Monday, April 2, 2007

Countdown to 3.14.2008- Pi Day and Einstein's B-Day!

Sunday, April 1, 2007

Pi- Easy as 3.14159265...

How I wish I could recollect pi easily today!

Well here is a way to recollect pi easily today:

Count the number of letters in each word in the first statement and that number corresponds to a digit in pi.

How-3
I-1
Wish-4
I-1
Could-5
.
.
.
You should get 3.1459265 after finishing the phrase.


This phrase is called a PIEM. Another piem is:

"The point I said a blind Bulgarian in France would know."

Notice that point is in red. This is so becuase it actually represents the decimal point and should not be counted as a digit.

Have fun making your own piems and post them in a comment. Every once in a while I will post a piem.

Change of Plans

All old posts will be deleted!