

Decimal  Encyclopedia, History, Geography and Biography 
  It is the most widely used numeral system, perhaps because humans have four fingers and a thumb on each hand, giving a total of ten digits over both hands. 
  Decimal notation is the writing of numbers in the baseten numeral system, which uses various symbols (called digits) for ten distinct values (0, 1, 2, 3, 4, 5, 6, 7, 8 and 9) to represent numbers. 
  The symbols for the digits in common use around the globe today are called Arabic numerals by Europeans and Indian numerals by Arabs, the two groups' terms both referring to the culture from which they learned the system. 
 www.arikah.com /encyclopedia/Decimal (1490 words) 
