a) (-7)^0 - 5^3 = 1-5^3 = 1 - 125 = -124
b) 32^1 : (-2)^5 = 2^5 : (-2^5) = -(2^0) = -1
c) (-3 i 1/3)^4 = (-10/4)^4 = (-10000/256) = 39,0625
d) 2 * 10^3 - 5 * 10^-2 = 10 * 10^1 = 10^2 = 100
e) (1/4+0,25^2)/(1/2)^2 = (1/4^1 + 1/4^2)/1/4^1 = 1/4(1 + 1/4)/1/4 = 1 + 1/4 = 1,25
