kartoçka

/kartotʃka/

Cases

SingularPluralWhen to use it
nominativekartoçkathe cardkartoçkalathe cardsthe plain dictionary form — the doer of the sentence
genitivekartoçkanıthe card'skartoçkalanıthe cards'the owner — whose it is
accusativekartoçkanıthe card (as the object)kartoçkalanıthe cards (as the object)a specific, known object — whom or what
dativekartoçkağato the cardkartoçkalağato the cardsdirection or recipient — to where, to whom
locativekartoçkadaat / in the cardkartoçkaladaat / in the cardswhere it is; also having — mende bar, "I have it"
ablativekartoçkadanfrom the cardkartoçkaladanfrom the cardswhere it comes from; also "than" when comparing
When to use each case
nominative
the plain dictionary form — the doer of the sentence
genitive
the owner — whose it is
accusative
a specific, known object — whom or what
dative
direction or recipient — to where, to whom
locative
where it is; also having — mende bar, "I have it"
ablative
where it comes from; also "than" when comparing

The endings are the same ones the pronouns wear — that page explains when each case is used.

With an owner

One ownedSeveral owned
mykartoçkammy cardkartoçkalarımmy cards
yourkartoçkangyour cardkartoçkalarıngyour cards
his / herkartoçkasıhis / her cardkartoçkalarıhis / her cards
ourkartoçkabızour cardkartoçkalarıbızour cards
you all'skartoçkağızyou all's cardkartoçkalarığızyou all's cards
theirkartoçkalarıtheir cardkartoçkalarıtheir cards

The overlap in the last rows is real, not a mistake: kartoçkaları can mean "his / her cards", "their card", or "their cards" — context decides.