Ngitshele ukuthi yiziphi kulezi zinombolo ezilandelayo eziyizinombolo eziphelele nokuthi yiziphi eziyizinombolo eziphelele: -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
Izinombolo eziphelele zihlanganisa zonke izinombolo ezinhle kanye no-0: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 Izinombolo eziphelele ziyizinombolo ezihlanganisa izinombolo ezinhle nezimbi kanye no-0: -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9  Izinombolo eziphelele ziyingxenye yezinombolo eziphelele.