Which numeral system utilizes digits from 0 to 9, commonly referred to as regular numbers?

The numeral system that utilizes digits from 0 to 9 and is commonly referred to as regular numbers is the Decimal Numeral System. The decimal system is base 10, which means it is built upon ten digits: 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. This system is the most widely used number system in daily life for counting, calculations, and various applications.

In contrast, other numeral systems use different bases and sets of symbols. The Binary Numeral System only employs two digits (0 and 1), serving as the foundational structure for computers and digital circuits. The Octal Numeral System uses eight digits (0 to 7), and the Hexadecimal Numeral System consists of sixteen symbols that include digits 0 to 9 and letters A to F, representing values ten to fifteen. Thus, while all these systems are essential in their contexts, the Decimal Numeral System distinctly utilizes the digits from 0 to 9, making it the correct choice.