That's my two cents worth

We don't use the phrase 2 cents worth in the UK. We don't have cents.

You can get your dime's worth, too.

In US English the apostrophe follows the s of cents. In all of English the apostrophe follows the final s in a possessive plural. English people used to to say two penn'orth (two penny worth).

Paok [this time spell right]. Technically yes you need it. However nobody here'd use it

Techly we could go into further detail: For instance a hyphen would make 'two cents' a compound adjectival modifier. But then wonder if need " ' "
Punk, Cen, Oli, Glenn, Pond, Help