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calculeaza in doua moduri :9×(2+4)

Răspuns :

9×(2+4) = 9×6= 54 sau 9×(2+4)= 9×2+9×4=18+36=54
primul mod:9×(2+4)=9×6=54
al doilea mod:9×(2+4)=9×2+9×4=18+36=54