by numbers

by numbers

Exactly as the rules, directions, or plans dictate. Primarily heard in UK. If we all focus and do this by numbers, then we should have no trouble getting it finished. The military strike was executed perfectly and by numbers.
See also: by, number
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.

by numbers

following simple instructions identified by numbers; mechanically.
This phrase alludes to painting by numbers , a painting kit with a canvas on which numbers have been marked to indicate which colour of paint should be applied at which place. US English uses the variant by the numbers .
1992 Canadian Yachting We discovered navigation by numbers as our beamy flotilla floated from buoy to buoy reading off the charts like a road map.
See also: by, number
Farlex Partner Idioms Dictionary © Farlex 2017

by ˈnumbers

something done easily but without imagination; following instructions: I’m not a very good cook, I just do it by numbers. ♢ The last thing we want is teaching by numbers, reducing learning to a mechanical process.
See also: by, number
Farlex Partner Idioms Dictionary © Farlex 2017
See also:
References in classic literature ?
An exceeding fierce battle immediately began, for about fifteen minutes, when we, being over-powered by numbers, were obliged to retreat, with the loss of sixty-seven men; seven of whom were taken prisoners.
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From this point on, until the inevitable passing away of the ephemeral body, the child remains constantly besieged by numbers. Numbers permeate our earthly existence like the air that surrounds us; they envelop the entire spectrum of our lives--from personal identifications to global economic transactions.
Shadhrah 3
The idea is to divide by numbers smaller than the given number to look for a particular set of remainders.
Cranking out primes: tracking down a long-lost factoring machine
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