add up

add up

1. To calculate the sum or total of multiple items. Can you add up these numbers? I'm worried I made an error in my calculations. If you were to add it up, how much time did you spend on this project? I added up my shopping trips, and, let me tell you, I spent a horrifying amount on clothes this month.
2. To equal the expected or presumed amount. These numbers just aren't adding up—I think I made a mistake somewhere. A: "What's wrong?" B: "The waiter gave us our bill, but it doesn't add up. It's like they charged us for an extra person's meal." Yep, we're good, everything adds up. No one needs to put in any more cash.
3. To be logical or believable. I listened to Jill's explanation, but I'm still skeptical—something just doesn't add up. A: "Do those new details add up?" B: "No, the initial witnesses told us a completely different story." The detective was not convinced that the suspect they apprehended was the true culprit. Something about the evidence wasn't adding up.
4. To become a significant amount. Usually used in reference to increasing expenses. With all of the driving I do for work, the cost of gas and maintenance really starts to add up. It will take a while for you to become a master, but all this practice really does add up. Weeks of sleep deprivation with a newborn are really adding up. What day is it?
5. To judge someone or something As I waited for my interview to start, I studied the other candidates and added up my competition. Guys, I've added up the best players on the other team, and we can definitely take them. Don't you try to add up your opponent before a faceoff?
See also: add, up
Farlex Dictionary of Idioms. © 2024 Farlex, Inc, all rights reserved.

add something up

to sum or total a set of figures. (See also add up (to something).) Please add these figures up again. I didn't add up these figures!
See also: add, up

add up

 (to something)
1. Lit. [for a set of figures] to equal a total. These figures don't add up to the right total!
2. Fig. [for facts or explanations] to make sense. (Considering facts as if they were figures.) Your explanation just doesn't add up!
See also: add, up
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.

add up

1. Amount to an expected or correct total, as in These figures don't add up, meaning they are not correct. [Mid-1800s]
2. Be consistent, make sense, as in I'm not sure that all this testimony will add up. [First half of 1900s]
3. Assess, form an opinion of, as in He looked across the track and added up the competition. Also see add up to.
See also: add, up
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

add up

v.
1. To calculate a sum by adding some set of numbers: The students added up the numbers they had copied from the blackboard. If you add all the scores up, we'll find out who won.
2. To calculate something, especially by addition: The shopkeeper added up the day's profits.
3. To amount to an expected total: Unfortunately, when we put the numbers into the equation, they did not add up.
4. To be reasonable, plausible, or consistent; make sense: The jury did not believe the witness's testimony because it simply did not add up.
See also: add, up
The American Heritage® Dictionary of Phrasal Verbs. Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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