a) √81 + 5 = 9 + 5 = 14
b) ∛1000 - 100 = 10 - 100 = -90
c) 4√1/121 = 4 * 1/11 = 4/11
d) ∛-27 / 18 = -3/18 = - 1/6
e) 2∛125 - 3 = 2*5 - 3 = 10 - 3 = 7
f) 6/√144 + 1 = 6/12 + 1 = 1/2 + 1 = 1 1/2 = 1,5
g) 3∛-8/4 - 5 = 3*-2/4 - 5 = -6/4 - 5 = -1,5 - 5 = -6,5
h) √16 + ∛125 = 4 + 5 = 9
i) √169 + √36 - √49 = 13 + 6 - 7 = 12
j) ∛1000 * √9 = 10*3 = 30
k) √900/∛27 + √49 = 30/3 + 7 = 10 + 7 = 17
l) 3√36 + 5∛-64 = 3*6 + 5*-4 = 18 + (-9) = 18 - 9 = 9
