Eu estou satisfeito com a nota no exame.

Yes. In European Portuguese the subject pronoun is usually dropped when the verb ending already shows the person.

• Eu estou satisfeito... = Estou satisfeito...

Both are correct. Eu adds a bit of emphasis on I (e.g. contrasting with someone else), but in everyday speech you’d very often just hear Estou satisfeito com a nota no exame.

Ser is used for permanent or defining characteristics; estar is used for temporary states, situations, or feelings.

Being satisfied with a grade is a current emotional state, not a permanent trait, so you say:

• Estou satisfeito com a nota no exame.

Using sou satisfeito would sound odd; it would suggest something like I am a satisfied person (by nature), which is not what you mean here.

Yes. Satisfeito agrees in gender and number with the subject.

• Man: Eu estou satisfeito com a nota no exame.
• Woman: Eu estou satisfeita com a nota no exame.
• Group of men / mixed group: Nós estamos satisfeitos...
• Group of women: Nós estamos satisfeitas...

So if you’re female, you should say satisfeita.

You can, and all are common, but there are small nuances:

• satisfeito: focused on your expectations being met. Very natural with grades, results, services, etc.

  • Estou satisfeito com a nota no exame.

• contente: generally “pleased / glad”, often a bit lighter, everyday tone.

  • Estou contente com a nota no exame.

• feliz: “happy”, often stronger or more emotional.

  • Estou feliz com a nota no exame.

All three work here. Satisfeito sounds particularly natural when talking about performance or results.

In this structure, Portuguese normally uses estar satisfeito com + thing.

• Estou satisfeito com a nota no exame.

Using de or por with a noun here would sound wrong or very unusual in European Portuguese.

You do see por when it’s followed by a verb in the infinitive:

• Estou satisfeito por ter passado ao exame.
  (I’m satisfied for having passed the exam.)

But with a plain noun (a nota), stick to com.

No is a contraction of em + o (in + the):

• em + o exame → no exame = “in the exam / on the exam”.

Similarly:

• em + a prova → na prova
• em + os exames → nos exames
• em + as provas → nas provas

So no exame literally means “in the exam / on the exam”.

Both a nota no exame and a nota do exame are grammatically correct, and in everyday speech they often overlap.

• a nota no exame
  
  • Literally: the grade in the exam
  • Focuses a bit more on the grade you got in that specific sitting / context.
• a nota do exame
  
  • Literally: the grade of the exam
  • Sounds slightly more like the grade that belongs to that exam.

In practice, for most contexts people will understand both as the grade I got in that exam. In European Portuguese, a nota no exame is very natural and common.

No, in this sentence you need the definite article:

• Correct: Estou satisfeito com a nota no exame.
• Incorrect: *Estou satisfeito com nota no exame.

In Portuguese, nouns usually need an article (or another determiner) in cases like this. A nota refers to your specific known grade.

No. Here satisfeito is an adjective (originally a past participle of satisfazer), and estar + adjective describes a state:

• Estou satisfeito. = I am satisfied. (state)

The Portuguese continuous form is usually estar a + infinitive in European Portuguese:

• Estou a estudar. = I am studying.

So:

• Estou satisfeito → state (adjective)
• Estou a satisfazer → continuous action I am satisfying (someone/something)

They look similar but are different structures.

In European Portuguese:

• exame: formal exam, especially school/university or official exams. Very natural here.
• teste: test, usually smaller or less formal than exame (classroom tests, quizzes, etc.).
• prova: can mean exam, test, or trial, but in the school context exame and teste are more common in Portugal.

Your sentence with a class test could be:

• Estou satisfeito com a nota no teste.

But for big official exams, exame is the standard word.

Yes, Portuguese allows some flexibility in word order. These are all possible (with slight differences in emphasis):

• Estou satisfeito com a nota no exame. (neutral, most common)
• Eu estou satisfeito com a nota no exame. (emphasis on I)
• Com a nota no exame, estou satisfeito. (emphasis on the grade; sounds a bit more formal or stylistic)

All are grammatically correct; the first one is the default everyday version.