כללי

 http://forum.swarthmore.edu/alejandre/numerals.html

http://www.math.twsu.edu/history/Topics/num-sys.html#hindu-arabic

http://www.internet-at-work.com/hos_mcgrane/ancient_numbers/maths_menu.html

http://www.hiline.net/~owens/Activities/Lessons/numbers.htm

ספרות ומספרים , יפרח ג'ורג'

מצרי

 http://www.eyelid.co.uk/numbers.htm 

http://www.math.twsu.edu/history/Topics/num-sys.html#egypt 

http://www-groups.dcs.st-and.ac.uk/~history/HistTopics/Egyptian_numerals.html

מאיה

http://mathforum.com/k12/mayan.math/index.html 

http://users.ccnet.com/~laplaza/maya/maya2.htm 

http://www.math.twsu.edu/history/Topics/num-sys.html#mayan 

http://www.math.twsu.edu/history/Activities/arith-act.html#mayan-act 

http://www.mayacalendar.com/mayacalendar/calasist.html 

http://users.ccnet.com/~laplaza/maya/maya.htm

http://www-groups.dcs.st-andrews.ac.uk/~history/HistTopics/Mayan_mathematics.html

 בבלי

http://www.math.twsu.edu/history/Topics/num-sys.html#babylonian

http://www-groups.dcs.st-    andrews.ac.uk/~history/HistTopics/Babylonian_numerals.html  

רומי

http://www.mcn.net/~jimloy/roman.html

http://home.planet.nl/~napel/roman.htm 

http://mathforum.com/dr.math/faq/faq.roman.html

http://www.cod.edu/people/faculty/lawrence/romans.htm

http://www.ivtechstudios.com/roman/ 

http://www.cargobay.com/clockshop/showroom/roman.html

יווני

http://www.math.twsu.edu/history/Topics/num-sys.html#greek

סיני

http://www.mandarintools.com/numbers.html