### Aztec Mathematics

```Aztec Mathematics
http://2012forum.com/forum/viewtopic.php?f=20&t=2701
The people of the Aztec Empire were an ethic group in central
Mexico who dominated from 1325-1521 AD. Their language
Nahuatl is still spoken today in the mountains of Mexico.
https://qed.princeton.edu/getfile.php?f=Aztec_Empire_c._1519.png
The Aztec civilization built large pyramids and complex cities.
Their capital city Tenochtitlan was built on the site of today’s
Mexico City. They were conquered by Cortez in 1521.
http://www.d.umn.edu/cla/faculty/troufs/anth3618/maaztec.html
The Aztec used a base 20 system.
http://www.ancientscripts.com/aztec.html
glyphs.
Notation: glyphs included a dot, flag, feather and bag
of incense
Face values
Each notation has a face value: 1, 20, 400, 8000
Place value
There are NO place values; this is not a positional
system. You just add up the values of the pictures
you see.
2009 would be written as
Remember, each feather has a face value of
400, each dot has a face value of 1. There
are no place values, so this system has no
expanded form. All together, the symbols
Now you try one!
References
Aztec. Retrieved January 10, 2010, from http://en.wikipedia.org/wiki/Aztec
Aztec Daily Life. Retrieved January 10, 2010, from
http://atschool.eduweb.co.uk/nettsch/time/alife.html
Kellermeier, J. (2009). Aztec Tribute Record Numerals. Retrieved
January 10, 2010, from
http://www.tacomacc.edu/home/jkellerm/EthnomathematicsText/Chapter2/2.5
AztecNumerals.htm
Siddiqui, A. (2004). Aztec Number System. Retrieved January 10,
2010, from
http://www.math.temple.edu/~zit/Native%20American/9%20Aztecs_
num.pdf
```