\
The question is .
The sum is unchanged no matter how one groups the numbers.
This illustrates the Associative Property of Addition .
Question illustrates Associative Property of Addition.
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b6e12add3a5a19dd26efa6f3cae7b464.png\")
. ![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=63b30614ae855254f4086bd0186079d1.png\")
. ![\"\"](\"/userfiles/image/steps_images/solution.JPG\")