Rezolva inmultirile de mai jos in doua moduriRezolvareMetoda 13 x (2 + 5) = 3 x 7 = 21(6 - 3) x 4 = 3 x 4 = 128 x (4 - 3) = 8 x 1 = 8(1 + 3) x 6 = 4 x 6 = 24
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Metoda 23 x (2 + 5) = 3 x 2 + 3 x 5 = 6 + 15 = 21(6 - 3)