Which numbering system uses digits 0-9?

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Study for the CodeHS AP Computer Science Principles (CSP) Exam. Prepare with flashcards and multiple choice questions, each question comes with hints and explanations. Get ready for success!

Multiple Choice

Which numbering system uses digits 0-9?

Explanation:
Digits 0 through 9 are used in a base-10 system, where each place value is a power of 10. That’s why it’s called decimal. For example, 3,274 means 3×10^3 + 2×10^2 + 7×10^1 + 4×10^0. Other numbering systems use different symbol sets: binary uses only 0 and 1, octal uses 0–7, and hexadecimal uses 0–9 plus A–F for 10–15. So decimal is the system that relies on ten distinct digits, 0 through 9.

Digits 0 through 9 are used in a base-10 system, where each place value is a power of 10. That’s why it’s called decimal. For example, 3,274 means 3×10^3 + 2×10^2 + 7×10^1 + 4×10^0. Other numbering systems use different symbol sets: binary uses only 0 and 1, octal uses 0–7, and hexadecimal uses 0–9 plus A–F for 10–15. So decimal is the system that relies on ten distinct digits, 0 through 9.

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