Habdhiska tiro (matalan. 3 ama 7). kulannada summadaha waxay ka dhigantahay tirooyin (Abyoone, tirsiimo iyo maangal) hadba sida ay ugu jirto ee dhanka taxaha waxaa hadidayaa aqrinteeda habdhiska tirada. waxaa taariikha hore loo yaqiinay taxaha lambarada kala gadisan sida Lambarada Roomaanka, Lambarada Carabta iyo Lamabarada Hindida iyo kuwe kale... sidoo kale waxaa la adeegsan jiray summado oo lambar ahaan loo qori jiray sida xarfaha ama erayo la isku dhafay sida Abjad lambar. Positional number system Bit Bit Lambar weyn Significant digit