Mediafax
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Gândul îți propune un test interesant, care să îți pună cu adevărat mintea la contribuție: Mutați un singur chibrit pentru a corecta 5×3=52. Atenție, orice este permis!
Orice… atâta timp când mutăm un singur băț de chibrit! Așadar, vom… întoarce masa! Sau, pur și simplu, vom alege să privim figura invers!
După care vor muta un singur băț! Și anume chibritul aflat în stânga-jos al celei de-a doua cifre, pe care îl vom muta în dreapta-jos, la aceeași cifră!
Și vom obține egalitatea corectă: 25 = 5 x 5.
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