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Problemă simplă de CLASA A TREIA care dă bătăi de cap adulţilor. Unde SE ÎNCURCĂ cei care greşesc răspunsul?
Cat fac 18÷9(9-7) = ?
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Aceasta problema simpla de clasa a treia a generat milioane de discutii in contradictoriu pe retelele de socializare. Si nu doar in Romania. Oameni din lumea intreaga au comentat pe Facebook, Twitter, YouTube etc. Multi dintre ei, insa, au dat raspunsul gresit. Iata unde se incurca cei care gresesc si care este raspunsul corect.
Iata mai jos cum se poate obtine rezultatul!
Ordinea operatiilor
Mai intai se rezolva paranteza. Asadar:
18÷9(9-7)= 18÷9x(2). Pana aici totul este clar. Apoi apar discutiile in contradictoriu.
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