The expression is
The sum is unchanged no matter how one groups the numbers.
This illustrates the Commutative property of multiplication:.
Question illustrates Commutative Property of multiplication.
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2149a53566023cd65d124d6ba4534e32.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=892b934ca2ca83530b5c149b5cd3027f.png\")
. ![\"\"](\"/userfiles/image/steps_images/solution.JPG\")