Min bror bruger lommeregneren til at beregne prisen, før han udskriver regningen.

Because min already makes the noun definite in Danish.

• min bror = my brother
• You do not normally add the definite ending when you use a possessive like min, din, hans, hendes.

So:

• en bror = a brother
• broren = the brother
• min bror = my brother

This is different from English, where definiteness is not shown on the noun itself.

Lommeregneren is the definite form, meaning the calculator.

In Danish, many nouns form the definite by adding an ending:

• en lommeregner = a calculator
• lommeregneren = the calculator

So in the sentence, the speaker is referring to a specific calculator, not just any calculator.

Yes. Bruger is the present tense of at bruge, which means to use.

• at bruge = to use
• bruger = uses / is using

In Danish, the present tense often covers both simple present and present continuous in English, depending on context.

So Min bror bruger lommeregneren can mean:

• My brother uses the calculator
• or My brother is using the calculator

Til at often expresses purpose: for doing something or to do something.

So:

• bruger lommeregneren til at beregne prisen = uses the calculator to calculate the price

Here, til at beregne explains what the calculator is used for.

A helpful way to think about it:

• til = for
• at beregne = to calculate

Together, it works like for calculating or to calculate.

Beregne is a more formal or neutral verb meaning calculate.

• at beregne = to calculate
• at regne ud = often to work out / figure out / calculate

In this sentence, beregne prisen sounds natural because it is about calculating a price in a straightforward way. Regne ud is also common, but it can sometimes feel a bit more everyday or informal.

Because both are definite nouns:

• prisen = the price
• regningen = the bill / the invoice

Their basic forms are:

• en pris = a price
• prisen = the price
• en regning = a bill / an invoice
• regningen = the bill / the invoice

Danish usually adds the definite article as a suffix instead of putting a separate word in front like English the.

Før means before.

In this sentence, it introduces a clause:

• før han udskriver regningen = before he prints the bill

So the full sentence describes the order of actions:

1. he uses the calculator
2. he calculates the price
3. then he prints the bill

Because after før, Danish uses normal subordinate clause word order.

That means the subject usually comes before the verb:

• før han udskriver regningen

Here:

• han = subject
• udskriver = verb

If this were a main clause, Danish might use verb-second word order, but after før, it stays in subordinate clause order.

Udskriver is the present tense of at udskrive, meaning to print out, to issue, or sometimes to write out, depending on context.

In this sentence:

• han udskriver regningen = he prints the bill / invoice

Because regning can mean either bill or invoice, the exact English translation depends on context.

Sometimes, yes, but not always.

Regning can mean:

• a bill in everyday situations
• an invoice in business contexts
• a statement of money owed

So in this sentence, if the brother is calculating a price and then printing it, invoice may be a very natural translation. But bill is also possible depending on context.

Because Danish often puts definiteness at the end of the noun instead of using a separate article.

Compare:

• the calculator = lommeregneren
• the price = prisen
• the bill = regningen

This is one of the biggest differences from English noun structure.

In this sentence, før is followed by a full clause:

• før han udskriver regningen

That is very natural because it clearly states who does the action.

Danish can sometimes use structures without a full clause in other contexts, but with a sentence like this, the full clause is the normal and clearest choice.

A natural past-tense version would be:

Min bror brugte lommeregneren til at beregne prisen, før han udskrev regningen.

Changes:

• bruger → brugte = used
• udskriver → udskrev = printed

The rest stays the same.

Yes, it is very normal.

The main clause is:

• Min bror bruger lommeregneren til at beregne prisen

This follows the common pattern: subject + verb + object + other information

Then the subordinate clause is:

• før han udskriver regningen

This also follows normal subordinate clause word order: conjunction + subject + verb + object

So the whole sentence is a good example of standard Danish sentence structure.