An apostrophe (‘) is used to denote possession, not create plurals.
Jason’s rice is correct; 100’s of puppies is not.
Add ‘s to a singular noun: The puppy’s rice
Add ‘ to a plural noun: The puppies’ rice
Generally, use ‘s if a word does not end in s. Apply the same rule for names: The Jones’ home.
Apostrophes can also indicate a missing letter in a word: can’t for cannot.
Part of a series on punctuation.