Liudmilachiriacid Liudmilachiriacid Matematică a fost răspuns d) (40 x 5 – 30 x 6) : 2 + (90 x 2:6) x 7=e) 450 : 5 + 90 x (72:8-81:9) x 10 = f) (30 x 2-4 x 5): 4x 16 + (648 : 9-23 +7 x 3) =