Western Governors University (WGU) ITEC2002 D322 Introduction to IT Practice Exam

The numerical system that uses base 10 to represent numbers is the decimal system. This system is the most commonly used number system in everyday life and mathematics, consisting of ten digits: 0 through 9. Each place value in the decimal system represents a power of 10, making it intuitive for calculations and standard numerical representation.

In contrast, other systems like binary use base 2 (with digits 0 and 1), octal uses base 8 (with digits ranging from 0 to 7), and hexadecimal employs base 16 (with digits from 0 to 9 and letters A to F to represent values). While these systems have their specific applications, particularly in computing and digital systems, the decimal system is foundational for general use in education, commerce, and daily calculations.