Wednesday, April 18, 2007
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)
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)
- Drop down the 1s digit in the non-11 number, this is the ones digit in the answer. 2
- Add the two digits together in the non-11 number to get the tens digit. 32
- 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
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.
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.
Subscribe to:
Posts (Atom)