Since Mar.17 the total number of visitors is FastCounter by LinkExchange Mental Arithmetic About Calculus Mouse's Poems Friends' Pages SlamDunk Pictures EMail Me Sign My Guestbook View My Guestbook

Those who dare to criticize you will be your friends and best friends! Those who always praise you have no qualification to be your friends, because they are not sincere. Friends are for communion. They should express their opinions sincerely. Please give me your opinion about my page. Thank you! Thank you very much! Press the "Play Button" to play a midi "I will Love You".

• Find The Square Of A Two-digit Number
• Find The Square Of A More-Than-Two-digit Number
• Find The Square Of A Two-digit Number Ends With 5

Method: 1. Divide the more than two-digit number into two parts and 
             make the right part have two digits.
          2. Get the square of the left part for the head of the square
             of the number.
          3. Double the product of left and right parts for the two 
             digits follow the head.
          4. Get the square of the right part for the last two digits.

eg1.  Find the square of 123.
1. 123 is divided into two parts, 1(left part) and 23(right part).
2. The square of 1 is 1.(get the head ofthe square of the number)
3. 2 x (1 x 23) = 46.(get two the digits follow the head)
4. The square of 23 is 529.(get the two digits, 29 for the last two digits)
5. 
   1
    46
     529
   -----
 = 15129

eg2.  Find the square of 879.
1. 879 is divided into two parts, 8(left part) and 79(right part).
2. The square of 8 is 64.(get the head)
3. 2 x (8 x 79) = 1264.(get the two digits, 64 follow the head)
4. The square of 79 is 6241.(get the two digits, 41 for the last two digits)
5.
   64
   1264
     6241
   ------
 = 772641

eg3.  Find the square of 1204.
1. 1204 is divided into two parts, 12(left part) and 04(right part).
2. The square of 12 is 144.(get the head)
3. 2 x (12 x 4) = 96.(get the two digits follow the head)
4. The square of 4 is 16.(get the two digits for the last two digits)
5.
   144
      96
        16
   -------
 = 1449616

eg4.  Find the square of 2415.
1. 2415 is divided into two parts, 24(left) and 15(right).
2. The square of 24 is 576.(get the head)
3. 2 x (24 x 15) = 720.(get the two digits, 20 follow the head) 
4. The square of 15 is 225.(get the digits, 25 for the last two digits)
5.
   576
     720
       225
   -------
 = 5832225


eg5.  Find the square of 9758.
1. 9758 is divided into 97 and 58.
2. The square of 97 is 9409.
3. 2 x (97 x 58) = 58 x 2 (100-3) = 11600-348 = 11252.
4. The square of 58 is 3364.
5.
   9409
    11252
       3364
   --------
 = 95218564

Certainly, the number with more digits, the more difficult to find
its square. see next example.
eg6. Find the square of 495673.
1. 495673 is divided into 4956 and 73.
2. Find the square of 4956.
   a) Divide 4956 into 49 and 56.
   b) The square of 49 is 2401.
   c) 2 x (49 x 56) = 2 x (50 - 1) x (50 + 6) = (100 - 2) x (50 + 6)
      = 5000 - 100 + 600 - 12 = 5488.
   d) The square of 56 is 3136.
   e) 2401
        5488
          3136
      --------
    = 24561936

3. 2 x (4956 x 73) = 2 x (5000 - 44) x (70 + 3)
   = (10000 - 88) x (70 + 3)
   = 700000 - 6160 + 30000 - 264
   = 723576

4. The square of 73 is 5329.
5.
   24561936
       723576
           5329
   ------------
 = 245691722929

When a two-digit number ends with 5, it is very easy to find its
square. Firstly, the first digit plus 1 and times the first digit
to get the head.  Secondly, paste 25 to follow the head.

eg. Find the square of 35.
1. (3 + 1) x 3 = 12.(get the head)
2. 
    12
      25
    ----
  = 1225

• The Graphic Properties For Logarithm

---

Poem is a way to express one's thought.

• The Posssession
• Me
• A Real Dream
• Birdie
• The World
• Response

The Possession

You come
You finally come
I heard your breath
I see your smile
Just slightly
My everythig belongs to you

Slowly
You come near to me
I forget
     All my precautions
while you are standing in front of me

At the second
     You are ready to kiss me
I could not hold you snugly
I call out tearfully
     ---" No "
I open my eyes unwillingly
     and see the sunshine comes through my window
I lose you
     and my everything

Me

Me, shy as a mimosa
When I contact with strangers
my ears are two pieces of
	irons in fire

I'm a aeolian bell
In a windless greenhouse
it's a dumb
In a winded outdoor
it could sing out a wonderful song

Me, funny as mathematics
Sometimes, it is difficult
	to find the answer out from me

I'm a bateau in Pacific Ocean
I don't know
	where I'll drift
	where should I drift.....

A Real Dream

Dream
In a real dream
i find a real affection
That's ------
	you

The you in my visualazation
The eyes that can talk
It seems to be
	the stars of full of poetic quality
That beats my heart profoundly

Birdie

Birdie
  is brawny
  and never crunches under
		its fate


Birdie
  although it can't fly high
  it can draws the curve of life


Birdie
  is like a bateau
  not afraid of storm
  hangs its hope high on
		its mast
  goes toward the oasis of life

The World

I have many feelings to this world
  	but I don't know how to describe.
  
I have many questions to this world
	but I don't know how to ask.

I have many vexations to this world
	but I don't know how to solve.

I have ...
	but I ...

The world of love
	is vague.
The world of love
	is intricate.

Response

A period of science,
	is talking about the stimulus.
That stabs my heart directly.

An usual afternoon,
An empty seat,
What do I feel?
	Who knows?
But I know that
	I have been avoiding.

---

My Friends' Homepages.

Friend	Page's Name	Description
Jack	Wind's Wolrd	News Links
Kevin	Kevin's BB home	Slam dunk & something to download
Raymond	�����ӺX	�����e�U
TaoKen	Kinglet's Kingdomm	Cartoon's Gallery,Eberouge
HuKen	The Party Is ON	Arron's Song, Andy Lau's music room, GiGi's photos, About Kathy

---

Slam Dunk