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Easy Mental Multiplication Trick

Easy Mental Multiplication Trick


Rating (3 votes)

2 Responses to “Easy Mental Multiplication Trick”

  1. Nu e nici un trick. Este efectiv inmultirea facuta intr-un mod mai dificil. Spre exemplu 3 linii paralele de cate ori se intersecteaza cu alte 3 linii paralele? de 9 ori. Adica 3×3. Si tot asa. Apoi aduna intersectile. Nici o smecherie. Oricine poate inmultii mai repede in mod traditional decat sa traga liniute si sa numere punctele de intersectie.

    Comment by George — 31 December , 2006 @ 1:27 pm
  2. mi se pare chiar stupid , calculez de 5 ori mai repede in minte decat sa trasez liniutze :-s interesant … poate .. eficient ? nicidecum

    Comment by manusha — 13 March , 2007 @ 4:52 pm

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