How is “add up to” used?

In Be Here Now (2015), one line is: “It just doesn't add up to me.”

Which movie is “add up to” from?

The clip at the top of this page is from Be Here Now (2015).

It just doesn't add up to me.

8 作品で登場 · 1 本目

to make a total amount of sth; to lead to a particular result; to show sth

14 本の映画に登場

オックスフォード映画の 50%
to make a total amount of sth
How much does it add up to, Christy?
And what do these numbers add up to?"
オックスフォード映画の 33%
to lead to a particular result; to show sth
Now then, Hercule, what do these facts add up to?

定義：Oxford Advanced Learner's Dictionary 第 9 版