a)(452:2-1):3:5x[(982x7+49x4):7]-11.500 =
225:3:5x[(6874+196):7]-11500=
15x[7070:7]-11500=
15x1010-11500=
15150-11500=3650
b){[96:6+(288:4:8-125:5:5)]x90}:100 =
{[96:6+(9-5)]x90:100=
[96:6+4]x90:100=
20x90:100=1800:100=18
c) 9.000-{146+[200:10x9-(348x7-49x48)]} =
9.000-{146+[180-(2436-2352)]}=
9.000-{146+[180-84]}=
9.000-{146+96]}=
9000-242=8758
d) 99x{364:7:2+[(195x3:5-100)+63:3:7]}:2 =
99x{364:7:2+[(117-100)+63:3:7]}:2 =
99x{364:7:2+[17+3]}:2 =
99x{26+20}:2=
99x46:2=4554:2=2277
e) 2.800:100:7+{(154-23x6):8+[100-(132:4+2)x2]}:6 =
2.800:100:7+{(154-138):8+[100-35x2]}:6=
2.800:100:7+{16:8+[100-70]}:6=
4+{2+30}:6=
4+32:6= aici iti da cu virgula
