AC9M9M04 • Year 9 Maths

Calculate and interpret absolute, relative and percentage errors in measurements (AC9M9M04)

recognise situations, including financial contexts, that use integers; locate and represent integers on a number line and as coordinates on the Cartesian plane

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60-second Quick Read

  • calculate and interpret absolute, relative and percentage errors in measurements, recognising that all measurements are estimates
  • Example: investigating error as a percentage of the exact value; for example, comparing an estimation of the number of people expected to come to an event by subtracting the actual…
  • Common trap: using absolute value in a percentage error formula; considering when they would use the absolute value and when they would not, depending upon the context