Sy deel die kaarte uit.

Here Sy means she.

A useful warning: sy can also mean his in other sentences, so context matters. In this sentence, it is the subject pronoun she because it is followed by the verb deel.

The full verb is uitdeel.

Afrikaans has many separable verbs. That means the verb has:

• a main part: deel
• a particle: uit

Together, uitdeel means hand out, deal out, or distribute.

So in this sentence, you should understand deel ... uit as one verb, not as two unrelated words.

Because uitdeel is a separable verb, and in a normal main clause Afrikaans usually puts:

• the finite verb early in the sentence
• the separable particle at the end

So:

• Sy deel die kaarte uit.

This is a very common pattern in Afrikaans.

Compare:

• Ek weet dat sy die kaarte uitdeel.
  In a subordinate clause, the verb is often written together again.

Not exactly.

• deel by itself often means share, divide, or split
• uitdeel means hand out, distribute, or deal out

So:

• Sy deel die koek. = She divides/shares the cake.
• Sy deel die kaarte uit. = She hands out/deals out the cards.

The uit changes the meaning.

Because Afrikaans uses die as the definite article for both singular and plural.

So:

• die kaart = the card
• die kaarte = the cards

Unlike English, Afrikaans does not change the depending on number.

Kaarte is the plural of kaart.

• singular: kaart
• plural: kaarte

Many Afrikaans nouns form the plural with -e, although not all nouns do this in exactly the same way.

So here:

• die kaart = the card
• die kaarte = the cards

It is in the present tense.

Depending on context, it can mean:

• She hands out the cards
• She is handing out the cards
• She deals out the cards

Afrikaans often uses the simple present where English might use either the simple present or the present continuous.

You use the usual Afrikaans double nie pattern:

• Sy deel nie die kaarte uit nie.

So the negative structure is:

• nie after the verb phrase begins
• another nie at the end of the clause

This double negative is normal in Afrikaans.

A very common past form would be:

• Sy het die kaarte uitgedeel.

Notice two things:

• Afrikaans often uses het
  • past participle
• the separable verb becomes one word again in the participle: uitgedeel

So:

• present: Sy deel die kaarte uit.
• past: Sy het die kaarte uitgedeel.

Yes. Kaart can also mean map, so kaarte can mean maps in the right context.

Only the context tells you which meaning is intended.

For example:

• speelkaarte would clearly mean playing cards
• in a travel or geography context, kaarte might mean maps

In your sentence, the intended meaning is understood from the context already given.