Subtraction as take-away and as difference
Channel: olicoTV
Date: 2014-06-12

This video forms part of the OLICO Youth Mathematics programme, which can be found at www.learn.olico.org. 
Lesson Code: L1 QC4

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This video is published under the Creative Commons Attribution-NonCommercial 3.0 Unported License (CC BY-NC) and you are free to use it for non-commercial purposes.