Quipu. Accounting instrument. Camelid fiber. Inka, Andes Centrales, 1400-1532 d.C. Colección Museo Colchagua, PE-MCOL 04 (900 x 770 mm).

How did they make records and perform addition?

The decimal system that the Inka imposed throughout Tawantinsuyu was first developed on the northern coast of Peru. It allowed the Inka to count the population (in censuses and registers), record harvests and heads of livestock and note tributes paid by the people. For this, the Inka created record-keeping and accounting objects that also allowed them to perform arithmetic.



Yupanas and pallares: Stones to calculate

Numbers and their meanings