What was the Aztec number system?

The Aztec number system was a vigesimal (base-20) system that utilized a combination of dots, bars, and symbols to represent numbers. Dots represented values of one, bars represented values of five, and specific symbols were used for larger values, such as 20 and 400. This system allowed the Aztecs to perform complex calculations and keep records, particularly for trade, tribute, and astronomy. Additionally, their number system was closely linked to their calendar and religious practices.