new umat123 youtube video

umat_wordpress_umat123_youtube-screenshotMade a new youtube video explaining one of the hard (yet simple) middle of the sequence UMAT questions – elucidated here with the colouring of the squares to be watching: http://www.youtube.com/watch?v=JDvFzQfdxTg umat123 is currently in stock and the 2014 print of umat456 is just back from the printers…

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