Bismillah [hidayahnet] Fwd: Magic of math

Wed, 27 Apr 2005 15:14:37 -0700



WCM <[EMAIL PROTECTED]> wrote:
Subject: FW: Magic of math
Date: Mon, 25 Apr 2005 17:03:21 +0800
From: "WCM" <[EMAIL PROTECTED]>
To: "bersamamu Moderator (E-mail)" <[EMAIL PROTECTED]>

 
-----Original Message-----
From: Mohamad b Saat [mailto:[EMAIL PROTECTED]
Sent: 21/04/2005 7:10 AM
To: WCM
Subject: Magic of math

A)

0 x 9 + 0 = 0

1 x 9 + 1 = 10

12 x 9 + 2 = 110

123 x 9 + 3 = 1110

1234 x 9 + 4 = 11110

12345 x 9 + 5 = 111110

123456 x 9 + 6 = 1111110

1234567 x 9 + 7 = 11111110

12345678 x 9 + 8 = 111111110

123456789 x 9 + 9 = 1111111110

 

B)

1 x 1 = 1

11 x 11 = 121

111 x 111 = 12321

1111 x 1111 = 1234321

11111 x 11111 = 123454321

111111 x 111111 = 12345654321

1111111 x 1111111 = 1234567654321

11111111 x 11111111 = 123456787654321

111111111 x 111111111 = 12345678987654321

 

 

C)

1 x 8 + 1 = 9

12 x 8 + 2 = 98

123 x 8 + 3 = 987

1234 x 8 + 4 = 9876

12345 x 8 + 5 = 98765

123456 x 8 + 6 = 987654

1234567 x 8 + 7 = 9876543

12345678 x 8 + 8 = 98765432

123456789 x 8 + 9 = 987654321

 

 

D)

1 x 18 + 1 = 19

12 x 18 + 2 = 218

123 x 18 + 3 = 2217

1234 x 18 + 4 = 22216

12345 x 18 + 5 = 222215

123456 x 18 + 6 = 2222214

1234567 x 18 + 7 = 22222213

12345678 x 18 + 8 = 222222212

123456789 x 18 + 9 = 2222222211

 

E)

123456789 + 987654321 = 1111111110

 

F)

1 x 142857 = 142857

2 x 142857 = 285714 (angka sama susunan berbeza)

3 x 142857 = 428571 (angka sama susunan berbeza)

4 x 142857 = 571428 (angka sama susunan berbeza)

5 x 142857 = 714285 (angka sama susunan berbeza)

6 x 142857 = 857142 (angka sama susunan berbeza)

7 x 142857 = 999999 (wauuu......Fantastikkk)

 

 

G)

Sebarang nilai jika dikalikan 9 maka jumlah hasilnya = 9 kita buktikan.....

1 x 9 = 9

2 x 9 = 18, jumlah 1 + 8 = 9

3 x 9 = 27, jumlah 2 + 7 = 9

4 x 9 = 36, jumlah 3 + 6 = 9

dst. sampai tak terhingga.....

 

H)

22 x 9 = 198.....cara cepatnya 2 x 9 = 18, lalu selitkan angka 9 ditengah, jadi 198....

buktikan sendiri cara cepat ini...

33 x 9 = 297, cara cepat 3 x 9, selipkan 9 ditengah

44 x 9 = 396

55 x 9 = 495

66 x 9 = 594

77 x 9 = 693

88 x 9 = 792

99 x 9 = 891

 

I)

Jika 3 angka kembar pula, selitkan angka 99 ditengahnya ....

kita buktikan......

222 x 9 = 1998, cara cepat 2 x 9= 18, selitkan 99 ditengah

333 x 9 = 2997

444 x 9 = 3996

555 x 9 = 4995

dst.......

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