Answer: deux cent trois
Explanation: To say 203 in french, you will say deux cent trois. Still confused? I'll break it up.
2 in french is deux.
0 in french is zéro, but in 203, it's cent
3 in french is trois.
Now, say deux. It sounds like your saying do.
You know how to say cent.
Lastly, pronounce trois. It's like your saying trwa.
Let me know of any questions.