When do we use 値 (あたい) instead of 価値 or 値段?


I would like to know

1) when do we use 値 (あたい) to say "value" instead of 価値 ?

2) when do we use 値 (あたい) instead of 値段 to say "price, cost"?

I don't see the difference between these words. Please feel free to give
example sentences so I can see the difference.

Thank you so much in advance for your answers!




**値 readings: 「ね」 vs. 「あたい」**

> **「ね」:**

For the vast majority of native speakers in almost all daily communications,
the word 「値」 is read 「 **ね** 」 to refer to a **_price_** or **_value_**.

「値{ね}が上{あ} **が** る」 means " ** _to rise in price_** "

「歌手{かしゅ}としての値{ね}をあ **げ** る」 means " ** _to raise one's value as a singer_** "

> **「あたい」:**

「値」 is read 「 **あたい** 」 to refer to a price or value **only in literary, old-
fashioned or fixed expressions**.

「値{あたい}が高{たか}い」 means " ** _a/the price is high_** ".

「～～に値{あたい}をつける」 means " ** _to put a pricetag on ~~_** "

「一文{いちもん}の値{あたい}もない」 is a fixed expression meaning " ** _not worth a penny_**
"

Thus, the two readings are not always interchangeable for natural use and you
would sound very weird if you used the 「あたい」 reading in your **daily
conversations** where inappropriate.

「値」 is read 「あたい」, however, by everyone everywhere when it refers to a " **
_numeric value_** " in math, graphs, charts, etc. Read it 「ね」 for that purpose
and you will again sound quite weird.

