Question

Объясните почему пишется ТРЕХСТАХ а не ТРЕХ СТАХ?

Answer 1

Имена числительные пишутся слитно.

Answer 2

Имя числительное всегда пишутся слитно 

Answer 3

Explanation of "ТРЕХСТАХ" vs. "ТРЕХ СТАХ"

In Russian, the word "ТРЕХСТАХ" is written without a space between "ТРЕХ" and "СТАХ" because it is a compound word formed by combining the numeral "трех" (three) and the noun "стах" (a colloquial abbreviation for "стакан" meaning "glass"). This type of combination is common in Russian language, where two words are merged to form a new compound word. The use of compound words is a distinctive feature of the Russian language and contributes to its rich vocabulary and expressive capabilities.

The absence of a space between "ТРЕХ" and "СТАХ" is consistent with the general rules of forming compound words in Russian. When two words are combined to form a compound word, they are typically written without a space between them. This is a standard practice in Russian grammar and orthography.

In summary, "ТРЕХСТАХ" is written without a space between "ТРЕХ" and "СТАХ" because it is a compound word formed by merging the numeral "трех" and the noun "стах," in accordance with the rules of Russian grammar and orthography.

I hope this explanation helps clarify the usage of "ТРЕХСТАХ" in the Russian language! If you have any more questions or need further clarification, feel free to ask.