Explaining "It doesn't add up"

Reviewed and edited by

Anwar Kareem 21/01/2025, 05:23

English.me team member

What does it mean?

The phrase "It doesn't add up" means that something is illogical or inconsistent; the facts or details do not make sense when considered together.

Tone

Informal and conversational, often expressing doubt or skepticism.

Origin

The phrase originates from mathematics, where numbers must align to logically fit a solution. When they don’t, the result is invalid, and this concept has been metaphorically applied to situations involving logic or reasoning.

Examples of usage

She said she was home all night, but her story doesn't add up.
The expenses you've listed don't add up to the total amount withdrawn.
Something about his explanation just doesn't add up.