b)27 x 15-13x 15+33 x 15=
Calculati in doua moduri

Răspuns:
27 × 15 -13 ×15+33×15
405-195+495
210+495
705
sper ca te am ajutat
27×15=405 13×15=195 33×15=495 405-195+495=705 al doilea mod 15×(27-13+33)= 15×47=705