![\"\"](\"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=c206ced40c15fa09f1f472e5015ed525.png\")
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First draw anumberline diagram.
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- From zero move 3.2 units right to reach 3.2.
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- Then move 4.7 units right show the addition of 4.7.
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- Find the final position on the number line.
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- The sum of
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c206ced40c15fa09f1f472e5015ed525.png\")
is 7.9. \
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![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
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The sum of is 7.9.
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