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A flag for twenty, a feather for eight thousand.
Also known as: Nahua numerals, Mexica numerals, Aztec number signs
The Aztec numeral notation writing quantities with dots, flags, feather-like signs and a bag sign in a base-twenty system.
Write quantities in a base-twenty system using distinct signs for each power of twenty.
Contexts: Mathematics, History
Additive rather than positional, unlike the Maya system: a quantity is written by repeating the sign for each power, so a large number occupies a large area of the page.
Contexts: Mathematics, History
Used in tribute records to state quantities of goods owed, so surviving examples are administrative documents rather than monuments.
Contexts: Mathematics, History
Dots for units up to nineteen, a small flag for twenty, a feather or fir-tree form for four hundred and a bag or pouch sign for eight thousand.
Both are Mesoamerican base-twenty systems, but the Maya notation is positional and the Aztec one additive.