Base 4 Extension Project Links
Egyptian Numerals, 3,500BCÂ
Babylonian Numbers Chart, 2,000BC (Read the beginning 3 paragraphs and the large number chart only)
https://mathshistory.st-andrews.ac.uk/HistTopics/Babylonian_numerals/
Mayan Number System, 400AD
https://www.storyofmathematics.com/mayan.html/
A Basic Review of Our Base 10 Number System
https://www.mathsisfun.com/binary-decimal-hexadecimal.html
Binary--How Does it Work?
http://www.kerryr.net/pioneers/binary.htm
https://www.mathsisfun.com/binary-number-system.html