Naravna števila

Viri: https://folio.rokus-klett.si/?credit=SSIO7SDZ1_2015&pages=14-15 https://www.google.com/search?sca_esv=587494963&rlz=1C1CHZN_slSI989SI989&sxsrf=AM9HkKkSOLzcf5jjr6YXEYGMYyMOwv6wfg:1701629879149&q=naravna+%C5%A1tevila&tbm=isch&source=lnms&sa=X&sqi=2&ved=2ahUKEwj6_PCj-fOCAxXRiP0HHXEDPL0Q0pQJegQIDRAB&biw=1522&bih=719&dpr=1.25#imgrc=p06CW9Bp0jcmSM