Olá Brandon,

Thank you for posting.

In terms of meaning, both will be equally understood. However, as used in the dialogue [Que horas preciso deixar o quarto?] is more used in daily conversations, casually.

However, in writing, it would be good to use the preposition, just as it is used in the answer for this type of question, for example:

[A que horas começa a aula?]

[(At) What time does the class start?]

[A aula começa às 8 horas.]

[The class starts at 8 o'clock.]

In case of any questions, please feel free to contact us.

Sincerely,

Cristiane

Team PortuguesePod101.com

Is there any difference between saying "A que horas preciso deixar o quarto?" and "Que horas preciso deixar o quarto?"

Olá Tom,

Thank you for posting.

It seems that the Vocabulary quiz is working fine with this lesson. Please use as a reference the Portuguese words as written on the Vocabulay tab.

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Sincerely,

Cristiane

Team PortuguesePod101.com

I think I've found a problem with the quizzes... it says you're correct if you just say the first letter