b- (23+17) : (14-10) + 8 =

c- 5 x 8 + (69-42) : 9 = d- 87 + 24 x 3 - (16 - 4) :3 =

e- (48 - 3 ) : 5 + 4 - (7 - 5 ) x 2 = f- 26 x (37 - 14) + 36 : 12 =