Calculează:
a) 3+3 [3+3:3x (3 + 3x3)] : 15
b) 812-4x [6 x (61 – 3 600 : 12:30)] : 9
C) [214 + 240: (16-2 x 5)] 25 – 25 : 25
90 + 7 x (1 614 – 12 000 : (18 - 10)]- 16
44 + 8 x [280 : (37 - 1 480:20:37)]:32-7
f) (18 x 8 +56): (50 x 40: (220 - 2 x 60)]
Scrie si calculeaza​