Somei a pontuação.

Somei is the 1st person singular form of the verb somar in the pretérito perfeito simples (the normal past tense for a completed action).

So:

• somar = to add, to total, to sum up
• somei = I added up / I totaled / I summed up

In Somei a pontuação, the speaker is saying they completed the action of adding up the score.

In Portuguese, the subject pronoun is often omitted when the verb ending already makes the subject clear.

• Somei already means I added up
• Eu somei is also possible, but it adds emphasis or contrast

For example:

• Somei a pontuação. = I added up the score.
• Eu somei a pontuação, não tu. = I added up the score, not you.

So leaving out eu is completely normal.

Here, pontuação means score, scoring, or points total.

That is important because pontuação can also mean punctuation in other contexts. So this is one of those words where context matters a lot.

In this sentence:

• Somei a pontuação = I added up the score / points

If someone were talking about commas, full stops, question marks, etc., then pontuação would mean punctuation instead.

Portuguese uses definite articles more often than English does.

So a pontuação literally looks like the score, and in Portuguese that is very natural when referring to a specific score already understood from context.

• Somei a pontuação. = I added up the score.

In English, we might sometimes just say I totaled the points or I added up the score, but Portuguese often prefers the article here.

Without the article, Somei pontuação, it would sound unnatural in this context.

Because pontuação can refer to the overall score as one total, not just to individual points.

So Portuguese may use:

• a pontuação = the score / the total score
• os pontos = the points

Both can work, but they focus slightly differently:

• Somei a pontuação = I totaled the score
• Somei os pontos = I added up the points

English often prefers points in the plural, but Portuguese can naturally use a singular noun for the total result.

A rough pronunciation guide for European Portuguese would be:

• Somei ≈ soo-MAY
• a = a very short uh
• pontuação ≈ pon-too-ah-SOWN with a nasal ending

A more IPA-like version is roughly:

• Somei a pontuação → /suˈmɐj ɐ põtwaˈsɐ̃w̃/

A few useful pronunciation notes:

• The o in somei is not a strong English oh; in European Portuguese, unstressed o often sounds closer to u
• -ei sounds like ay
• The final -ão is nasal, which is a sound English does not really have

Yes, absolutely.

• Somei a pontuação.
• Eu somei a pontuação.

Both are correct.

The version without eu is more neutral and very common.
The version with eu is used when you want to be clearer, more emphatic, or contrastive.

For example:

• Quem somou a pontuação?
  Eu somei a pontuação.

So the difference is usually about emphasis, not grammar.

Yes, it is natural, especially if you mean that you calculated or totaled the score.

Depending on the situation, Portuguese speakers might also say:

• Somei os pontos. = I added up the points.
• Calculei a pontuação. = I calculated the score.
• Fiz a soma dos pontos. = I did the sum of the points.

So Somei a pontuação is correct and natural, but os pontos may sound a bit more concrete if you are talking about separate points in a game, contest, or test.

It can be used for both.

Somar literally means to add, but it is also used naturally for totals such as:

• numbers
• points
• scores
• costs
• amounts

So in this sentence, somar works perfectly because a score is something you can total up.

Examples:

• Somei os números. = I added up the numbers.
• Somei os pontos. = I added up the points.
• Somei a pontuação final. = I added up the final score.

In theory, yes, because pontuação can mean punctuation. But in practice, Somei a pontuação strongly suggests score/points, not punctuation.

That is because the verb somar goes very naturally with numbers and scores. It is not a normal verb for punctuation marks.

If you were talking about punctuation in writing, you would be much more likely to see verbs like:

• corrigir a pontuação = correct the punctuation
• rever a pontuação = review the punctuation
• melhorar a pontuação = improve the punctuation

So in normal use, this sentence will usually be understood as being about a score.