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Diploma in Higher Education Studies

Hexadecimal numbers

HES 102 · Mathematics for University Study — Week 6 of 16

CourseHES 102
Week6 of 16
SemesterI
TutorOnline in the course chat

This week’s topics

Hexadecimal numbers

  1. Counting in base 16
  2. Converting between hexadecimal, binary and denary
  3. Where hexadecimal is used (colour codes)

What you will be able to do

  • 1.3 Convert denary numbers to binary and hexadecimal.

Activity

Decode web colour codes from hexadecimal to denary.

Study materials

Further resources

  • Contemporary Mathematics, 4.3: Converting with Base Systems · PDF · OpenStax Contemporary Mathematics (2023), 4.3: the method for converting between any bases; base-16 practice in exercises 38 and 44 (p. 299), pp. 288–299 · for registered students
  • Computer Systems: A Programmer's Perspective, 2.1.1: Hexadecimal Notation · PDF · Bryant & O'Hallaron, CS:APP 2e manuscript sample, 2.1.1: converting between hex, binary and denary (a step up), pp. 32–35 · for registered students
  • CSS Notes for Professionals, ch. 18: Colors · PDF · GoalKicker CSS Notes for Professionals, ch. 18: hexadecimal colour codes such as #FF0000 on web pages, pp. 115–125 · for registered students
Materials marked “for registered students” open in the student portal, which is set up as soon as you receive final acceptance.
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Course plan
  • Week 1: Fractions, decimals and percentages
  • Week 2: Calculating with percentages
  • Week 3: Percentage increase and decrease
  • Week 4: Percentages in business: profit, mark-up and VAT
  • Week 5: Binary numbers
  • Week 6: Hexadecimal numbers
  • Week 7: Adding binary numbers
  • Midterm: Midterm evaluation
  • Week 9: Using formulae
  • Week 10: Solving equations and rearranging formulae
  • Week 11: Logic gates and truth tables
  • Week 12: Averages and range
  • Week 13: Reading charts and tables
  • Week 14: Solving problems step by step with flowcharts
  • Week 15: Review and coursework completion
  • Final: Final assessment and submission
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