Monday, April 21, 2008

Bilangan ajaib

Keajaiban perkalian dengan bilangan 9 dan kelipatannya

9 x 12.345.679 = 111.111.111
18 x 12.345.679 = 222.222.222
27 x 12.345.679 = 333.333.333
36 x 12.345.679 = 444.444.444
45 x 12.345.679 = 555.555.555 ....


Perhatikan pola perkaliannya!
Hitunglah nilai dari :

54 x 12.345.679 =

63 x 12.345.679 =

72 x 12.345.679 =

81 x 12.345.679 =

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