The numbers from 0 to 10 are these:
- 0 nula
- 1 jedin, jedna, jedno
- 2 dva, dvě
- 3 tri
- 4 četyri
- 5 pet
- 6 šest
- 7 sedm
- 8 osm
- 9 devet*10 deset
Three houses -> tri domy
0 houses -> nula domov (needs Genitive)
1 house -> jedin dom
2 houses -> dva domy (2 to 4 need accusative plural)
pet domov, deset domov (everything over 4 needs the Genitive)