check the math

check and balance

Provide mutual oversight and limitation by independent organizations in order to prevent abuses of power.

check is in the mail

A common excuse used by debtors to put off creditors.

check through

To permit someone to continue onward, e.g. through a security checkpoint, after verifying their identity, tickets, etc.

do the math

To determine the explanation for or precise nature of a situation, such as the motive underlying someone's behavior, based on available facts.

gut check

An honest, reflective appraisal of one's true feelings concerning a matter of concern.

reality check

A wake-up call; a reminder.

spot check

A cursory inspection or examination, especially of a sample of something.

take check

To take offence.