Sunday, 20 November 2011

TEKNIK MENGUASAI SIFIR

  • menghafal
  • petua
  • pola / pattern
  • dengan bantuan bahan (seperti jari)

Bagaimana??

2 + 5 X 3 = ?

= 21

= 17
Posted by at

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)