The official language of Slovakia is Slovak, but there are lots of other languages that people speak here. One common language is Hungarian, especially in the southern part of the country, because Slovakia used to be a part of Hungary a long time ago. Many people also speak English as a second language, which Slovak kids have to take it in school, and people may choose to learn German, French, Russian or Spanish as a third language. There is also a large number of Roma people in Slovakia. Roma people are sometimes called "gypsies," and they speak a language called Romani.
The type of money used in Slovakia is called the euro. 1 euro or €1 is the same as $1.16 in the United States. There are many countries that use the euro to make it easier for people when they travel from one place to another. The countries that use the euro are a part of a monetary union called Eurozone, which includes countries such as Germany, Italy, France, Spain and Austria.
In Slovakia, a bottle of water costs 25 cents, which would be 29 cents in the United States.