Number bases, measurement units & error in calculations Online Short course

Credits 2


This unit standard is designed to provide credits towards the mathematical literacy requirements of the NQF at level 2. The essential purposes of the mathematical literacy requirements are that, as the learner progresses with confidence through the levels, the learner will grow in:

  • An insightful use of mathematics in the management of the needs of everyday living to become a self-managing person
  • An understanding of mathematical applications that provides insight into the learner `s present and future occupational experiences and so develop into a contributing worker
  • The ability to voice a critical sensitivity to the role of mathematics in a democratic society and so become a participating citizen.

People credited with this unit standard are able to:

  • Convert numbers between the decimal number system and binary number system
  • Work with numbers in different ways to express size/magnitude.
  • Demonstrate the effect of error in calculations


  • Convert numbers between the decimal number system and the binary number system.
  • Perform addition and subtraction of positive whole numbers in binary up to 100002 (16 in decimal).
  • Demonstrate understanding of the mathematical relationships and principles involved in the computations.
  • Conversion between binary and decimal numbers is done correctly.
  • Basic addition and subtraction calculations in the binary number system are done correctly.
  • Using positive whole numbers up to the 16 in decimal.
  • Practical applications of the decimal and binary system are explained correctly.
  • Work with numbers in different ways to express size and magnitude.
  • Use scientific notation for small and large numbers.
  • The prefixes indicating magnitude in measurements are correctly related to the decimal system.
  • From Giga to Pica (1012 to 10 -12)
  • Conversions between related units in different measurement systems are correctly applied in real-life contexts.
  • SI to Imperial; Degrees F to degrees C.
  • Demonstrate the effect of error in calculations.
  • Work with rational and irrational numbers.
  • Explore repeating decimals and convert them to common fraction form
  • Use scientific notation for small and large numbers.
  • Symbols for irrational numbers such as 7c and 42 are left in formulae or steps to calculations except where approximations are required.
  • Descriptions are provided of the effect of rounding prematurely in calculations.
  • The desired degree of accuracy is determined in relation to the practical context.
  • The final value of a calculation is expressed in terms of the required unit.

Course delivery and Requirements

This course can be started at any time and is self paced and completely online , You will need an Internet connection and a PC or Laptop to complete this course

This course is applicable to being delivered in house at your company premises, please contact us for a separate quotation.



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