Video Solving percentage problems

TLF ID M011455

This digital resource is a video demonstration of a procedural method to calculate an unknown quantity, given an amount is a known percentage of the unknown. For a single example, students are presented with an algorithmic, step-by-step, pen-and-paper method. The demonstration is complemented by the presenter's commentary detailing the reasons for each step of the procedure, including a long division calculation.

Educational details

Educational value
  • This resource aligns with the content description in the year 7 mathematics curriculum that refers to calculations involving percentages. It presents an approach to a specific type of percentage calculation that many students find difficult.
  • This resource will assist students who are reviewing or seeking to learn a specific procedure for a single type of percentage calculation.
Year level


Topics Percentages
Learning area
  • Mathematics

Other details

  • Copyright Holder
  • Name: Khan Academy
  • Organization: Khan Academy
  • Address: UNITED STATES
  • URL:
  • Publisher
  • Name: Khan Academy
  • Organization: Khan Academy
  • Description: Publisher
  • Address: UNITED STATES
  • URL:
  • Resource metadata contributed by
  • Name: Education Services Australia Ltd
  • Organisation: Education Services Australia Ltd
  • Address: AUSTRALIA
  • URL:
Access profile
  • Generic
Learning Resource Type
  • Video
  • Resource: © Khan Academy, 2012, except where indicated otherwise. Licensed under a Creative Commons Attribution-NonCommercial-ShareAlike (CC-BY-NC-SA) 3.0 United States licence ‘Moving image’ image: © Education Services Australia Limited 2012. You may use, reproduce and communicate this image for non-commercial educational purposes provided you retain all acknowledgements associated with the image.