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by jayd16 2077 days ago
>This is fag packet math

Is this what they call napkin math in the UK? Back of the cigarette pack math?
2 comments
hondo77 2077 days ago
From https://en.wikipedia.org/wiki/Back-of-the-envelope_calculati...: In British English, a similar idiom is "back of a fag packet".
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dboreham 2077 days ago
To be consistent I think it should be "fag packet maths".
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