Tìm kiếm
Back-of-the-envelope calculation
/bˈakɒvðɪˈɛnvəlˌəʊp kˌalkjʊlˈeɪʃən/
/bˈækʌvðɪˈɑːnvəlˌoʊp kˌælkjʊlˈeɪʃən/Back-of-the-envelope calculation
01
tính toán sơ bộ, tính toán nhanh
a rough estimate or calculation done quickly and informally, often using basic methods or assumptions
Idiom
InformalWhat is the origin of the idiom "back-of-the-envelope calculation" and when to use it?
The idiom "back-of-the-envelope calculation" originates from a common practice in which people perform quick calculations or estimations on the back of an envelope or a scrap of paper when they don't have access to a calculator or formal tools. This practice is often associated with simplicity, informality, and rough estimations. This idiomatic phrase is used to describe a rough, simplified, or quick estimation or calculation, typically done without using precise data or detailed analysis.
Example
I do n't need the exact amount.
Tôi không cần số tiền chính xác. Chỉ cần cho tôi một phép tính toán sơ bộ.
We did some back-of-the-envelope calculations to estimate the cost of the project.
Chúng tôi đã thực hiện một số tính toán sơ bộ để ước lượng chi phí của dự án.
Từ Gần
