Taran Xisaab ahaan (Af-Ingiriis: Product) waa natiijada Iskudhufasho laba walxoox. Kala hormarinta ay imaanayso tirooyin maangal ah ama kakan ee howlgalka iskudhufashada kumana lahan wax saamayn ah qiimaha taranta. Tani waa gaar ahaansho loola jeedo howsha iskudhufashada ee Kala-hormarinta. Si kooban Taran waa wixi ka soo baxa laba tiro oo la isku dhufto sida 2*2= 4 markaa afar waa Taranta 2*2. Dhig tirooyin kubbado ah qaab ah laydi tirooyinka sadaradiisa r {\displaystyle r} tiri qotimadiisa s {\displaystyle s} wuxuu ku siinayaa : r ⋅ s = ∑ i = 1 s r = ∑ j = 1 r s {\displaystyle r\cdot s=\sum _{i=1}^{s}r=\sum _{j=1}^{r}s} kubbad. ⋅ − + − + − + − + {\displaystyle {\begin{array}{|c|c c|}\hline \cdot &-&+\\\hline -&+&-\\+&-&+\\\hline \end{array}}} Haddii si kale loo dhigo: Tranta laba tiro tabaneyaal ah waxay la midtahay tiro togan.