am nevoie de ajutor la ex 10 si 11 va roggg

EX:11 249-(64:2)+13×10
(35×11)+(93:3)-(56:7)
1640+338-752-906
(9×16)+(42:6)+(57×100)
8700-(37×43×5)-(84:4)
(65:5)×50+3264+1009