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subtract from (something)

1. To remove or be removed from a number or tally. You have to subtract from the variable before you multiply because of the parentheses. They said they would be willing to offer us complimentary champagne rather than subtracting from our bill.
2. To diminish or detract from something. Thankfully the somewhat contrived plot doesn't subtract from the film's energy and charm. The star captain's absence really subtracted from the team's performance, perhaps more so than any of us might have guessed.
3. To remove someone, something, or a number from a group or larger thing. In this usage, a noun or pronoun is used between "subtract" and "from." You can only subtract the expenses that were used specifically for business purposes from your tax return. We didn't order any movies from our room, so please subtract these charges from the bill. If we subtract out closest family and friends from the guest list, we're left with nearly 150 people.
See also: subtract
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

subtract something from (something else)

to deduct or take away something from something else. Please subtract the cost of the meal from my fee. I demanded that they subtract the extra charge from my bill.
See also: subtract
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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References in periodicals archive ?
The sum of the two is $97,000, which gets subtracted from the gross profit, for a net operating income of $43,000.
In a consumptionbased system, net savings are subtracted from gross receipts to produce the tax base while withdrawals from savings are included in the tax base.
I only subtracted 4, but I was supposed to subtract 8.
"When we work on subtraction problems, my students often break apart the number and subtract parts at a time," Meghan explained.
They explained that it was easier to keep track of their reasoning because they subtracted the number the same way they said it.
He explained, "I took the 600 and the 300 and subtracted them to get 300.
OK, Germaine, so you noticed that Keisha kept 674 the same as she began to subtract. Let's have someone else tell us how that compares to what DeJuan did.
DeJuan broke up both numbers, and he subtracted using what he knew about the places of the numbers.
Tarra, what does it mean that DeJuan subtracted using the places of the numbers?