add up
• increase in amount, number, or degree.
• "watch those air miles add up!"
• perform the process of calculating the total value of two or more numbers or amounts.
• "I wonder how many people get ripped because they can't add up"
• seem reasonable or consistent; make sense.
• "many things in her story didn't add up"
Similar:
make sense,
seem reasonable,
seem plausible,
stand to reason,
stand up,
hold up,
hold water,
bear examination,
bear investigation,
be verifiable,
ring true,
be convincing,