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Numărul celor pentru care noţiunile elementare de matematică sunt necunoscute a crescut foarte mult, iar din ce în ce mai mulţi adulţi sunt atât de slabi la calcule încât nu ajung nici măcar la nivelul cerut pentru un copil de 9-11 ani.
De exemplu, testul de AICI este rezolvat fără probleme de un elev de clasa a V-a. Voi reuşiţi?
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