Idiom: Back-Of-The-Envelope
Meanings
From the idea that the calculation or reasoning would be jotted down on any available scrap of paper such as the actual back of an envelope.
How to pronounce "back-of-the-envelope":
AU
Approximate, rough, simplified, especially of a calculation, estimation or other reasoning.
Example: "Do some back-of-the-envelope calculations before all the facts come in."
Example Sentences
1
Let me just do some quick back-of-the-envelope calculations to estimate the cost.
2
He didn't have time for detailed calculations, so he did a back-of-the-envelope analysis.
3
Before making a decision, she did a back-of-the-envelope calculation to determine potential profits.
4
The scientist made a rough back-of-the-envelope sketch of his theory on a napkin.
5
I can give you a back-of-the-envelope estimate on how long the project will take.
