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We’re refreshing the questions on our KS3 and GCSE Computer Science subject knowledge assessment. The current version remains available. Updated questions will be available from 18 May 2026.

GCSE

Lesson 7 Hexadecimal

Curriculum > KS4 > Unit > Lesson

Learners will be reminded about base 2 and base 10, then they will be introduced to hexadecimal, which is base 16. They will be shown the traditional method for converting between base 2 and base 16, then they will learn about a simpler method that uses two tables to simplify the process.

Learning objectives

  • Explain why and where hexadecimal notation is used
  • Explain how numbers are represented using hexadecimal
  • Convert decimal numbers to and from hexadecimal numbers

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