Meanings
How to pronounce "add up":
AU
To take the sum of; to total.
Example: "Add up the prices and find out how much it will cost."
To accumulate; to amount to.
Example: "If you can save even a couple of dollars per day, it will add up to a lot over a year."
To make sense; to be reasonable or consistent.
Example: "His story just doesn't add up. Why would he have been at the restaurant the day before the event?"
Example Sentences
1
I can't figure out why the numbers don't add up.
2
Her story just doesn't add up; something is not right.
3
If we add up all the expenses, it's clear we went over budget.
4
The total cost will add up to $100.
5
The salesman tried to convince me that buying the more expensive product would add up in the long run.