På loppemarkedet veksler vi penger og priser bruktvarene.

This is because Norwegian follows the V2 rule in main clauses: the finite verb usually comes in the second position.

• På loppemarkedet = first position
• veksler = second position
• vi = comes after that

So:

• På loppemarkedet veksler vi penger ...
• literally: At the flea market exchange we money ...

In natural English, we would say At the flea market, we exchange money..., but Norwegian keeps the verb in second place.

If you started with the subject instead, you could say:

• Vi veksler penger og priser bruktvarene på loppemarkedet.

Both are grammatical, but the original sentence emphasizes where this happens.

Norwegian often uses på for places that are thought of as events, organized activities, or public venues, not just physical interiors.

So på loppemarkedet means at the flea market.

This is similar to other common expressions such as:

• på skolen = at school
• på jobb = at work
• på fest = at a party

If you said i loppemarkedet, it would sound more like you are emphasizing being inside the flea market physically, rather than simply being there as part of the activity. In most ordinary contexts, på loppemarkedet is the idiomatic choice.

Veksler is the present tense of å veksle.

Here it means something like:

• exchange money
• make change
• sometimes change money

At a flea market, the most natural interpretation is often make change or exchange money into smaller amounts, since sellers may need coins and small bills.

So vi veksler penger can mean that we exchange money as part of the flea market activity.

Because penger works like a general mass/plural noun here, similar to money in English.

• vi veksler penger = we exchange money

You do not need an article when speaking generally.

Compare:

• Jeg trenger penger. = I need money.
• Vi teller pengene. = We count the money.

Notice the difference:

• penger = money, money in general
• pengene = the money, specific money

Here priser is a verb, not a noun.

It is the present tense of å prise, which means to price, to value, or to put a price on something.

So:

• priser bruktvarene = price the used goods / put prices on the used items

This can be confusing because priser can also be the plural noun prices. But in this sentence, the grammar shows it is a verb:

• vi veksler ... og priser ...
• two coordinated verbs: veksler and priser

So the sentence means that we exchange money and price the second-hand items.

Bruktvarene is one word because Norwegian usually attaches the definite article to the end of the noun.

It breaks down like this:

• bruktvare = a used item / second-hand item
• bruktvarer = used items / second-hand goods
• bruktvarene = the used items / the second-hand goods

So:

• brukt- = used
• vare = item, good, product
• -ne = definite plural ending

This is a very common pattern in Norwegian.

Because Norwegian usually marks definiteness by adding an ending to the noun.

Examples from the sentence:

• loppemarkedet = the flea market
• bruktvarene = the used items

This is one of the big differences from English. Instead of putting the before the noun, Norwegian often adds a suffix:

• bil = car
• bilen = the car
• hus = house
• huset = the house
• varer = goods/items
• varene = the goods/items

So the definiteness is already built into the word.

The sentence is in the present tense.

• veksler = present tense of å veksle
• priser = present tense of å prise

So the sentence can mean either:

• we are exchanging money and pricing the used goods right now, or
• we exchange money and price the used goods as a regular activity

As in many languages, the exact time sense depends on context.

Because both verbs share the same subject.

• veksler and priser both belong to vi

So the structure is:

• vi veksler penger og priser bruktvarene
• we exchange money and price the used goods

Norwegian, like English, does not need to repeat the subject when two verbs are connected by og and have the same subject.

Yes. A very natural rearrangement would be:

• Vi veksler penger og priser bruktvarene på loppemarkedet.

This keeps the subject first, which may feel more familiar to an English speaker.

The difference is mainly focus:

• På loppemarkedet veksler vi penger ... emphasizes at the flea market
• Vi veksler penger ... på loppemarkedet starts more neutrally with we

Both are good Norwegian.