At the beginning of knowledge, mathematics enabled to anticipate the result of quantity transactions, i.e., the total size of the cow herd of a couple that was going to get married could be quantified to 20 heads without putting them all together and counting, just by knowing that the bride would pitch in with her personally owned three cows, the groom with his nine and the bride's father - as a dowry - with additional eight.
Así, la suma era capaz de prever que sería de 20 cabezas el tamaño final del rebaño de una pareja, cerca de unirse en matrimonio, en que la novia aportara tres vacas, el novio nueve y el padre de la novia - a título de dote - otras ocho.
Assim, a soma era capaz de prever que seria de 20 cabeças o tamanho final do rebanho de um casal, prestes a contrair matrimônio, em que a noiva entrasse com três vacas, o noivo com nove e o pai da noiva - a título de dote - com outras oito.