Question

The Inca used
for both mathematics and record keeping.

Answer 1

The Inca used **quipus** (also spelled "khipus") for both mathematics and record keeping. Quipus were a system of knotted strings that served as a means of recording numerical data and information related to administration, accounting, and even narratives. Each knot and the position of the strings conveyed different types of information, allowing the Incas to keep meticulous records despite the lack of a written language.