Meaning of the word "As easy as ABC" in English

What does "As easy as ABC" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

As easy as ABC

US /æz ˈiːzi æz eɪ biː siː/
UK /æz ˈiːzi æz eɪ biː siː/

Idiom

very easy; extremely simple

Example:
Don't worry about the exam, it's as easy as ABC.
Learning to use this new software is as easy as ABC.