The three simplest ways in French to turn a statement into a question are:
1. Use intonation
Just as in English, you can state something with a querying tone (or in written form add a question mark).
2. Prefix Est-ce que...
Is it that... added to the beginning of a statement is a common way to start a question:
3. Append ...n'est-ce pas?
Pronounced "ness pah", this is like adding is it not? to the end.
Unlike English, French doesn't have different forms like don't you, haven't you etc. so it's always isn't it?
We might say Do you have any change? but in French you cannot say Fais-tu avoir de la monnaie?
See also the inverted way to ask questions: Forming inverted questions in Le Présent (except il, elle, on forms), Forming inverted questions in Le Présent with il, elle, on