![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
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The expression is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=30ca2674b9da2073cc4786f054dd686d.png\")
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First draw anumberline diagram.
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- From zero move 9.9 units right to reach 9.9.
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- Then move 5.4 units left to show the difference of 5.4.
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- Find the final position on the number line.
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The difference of ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=30ca2674b9da2073cc4786f054dd686d.png\")
is 4.5.
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![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
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The difference of is 5.3.
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