Questions & Answers about У Анны есть сто один рубль.
Why is the word for ruble in the singular form (рубль) when she has 101 of them?
In Russian, the last word of a compound number decides the grammatical form of the noun. Because сто один ends in один (one), the noun follows the rule for 1 and stays in the nominative singular. So even though 101 is a large amount, you still say сто один рубль.
Does the word сто (one hundred) change its ending here?
No, it stays exactly as сто. In Russian possession sentences, the thing being owned is actually the grammatical subject, so it is in the nominative case. The number 100 has a very simple declension: it is сто in the nominative and accusative cases, and ста in all other cases.
Why does Anna's name change to Анны?
To express possession (having something), Russian uses the preposition У followed by the genitive case. For feminine names ending in -а, the ending changes to -ы, making it У Анны.
What is the exact role of the word есть in this sentence?
The word есть literally means exists. The Russian construction for having something roughly translates to By Anna exists 101 rubles. We typically include есть in the sentence when we want to state the fact of physical possession, like having money or an object.