MATH
'(<a href="http://www.j-archive.com/media/2007-07-25_DJ_03.jpg" target="_blank">Cheryl of the Clue Crew shows the mathematical equation (1+2) + 3 = 1 + (2+3) on a monitor.</a>) The grouping of terms is irrelevant according to this property of addition as well as multiplucation'
associative