Cube roots

The cube root of a number is a number to the power of 3 that equals the number in question.

Ex. Cube root of 27? Or in other terms, x^3 = 27.

So the question is asking to find x. The obvious answer is 3.

From what I can tell, I haven't seen an actual way to calculate by hand cube roots easily (meaning you kinda have to play the guessing game with it). You can easily use a calculator.