![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
The expression is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=aea90e8a57c989b86b98b8ae31b22c16.png\")
Place value chart for 9.4 and 4.2.
\![\"\"](\"http://www.mathskey.com/userfiles/image/Library/Place_Value_Chart.gif\")
| \
\ | \
\
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\
\ | \
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9 \ | \
\
4 \ | \
\
\ | \
\
\ | \
| \
\ | \
\
\ | \
\
\ | \
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4 \ | \
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2 \ | \
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\ | \
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\ | \
Line up the decimal points and draw a line below the numbers.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=cf494dd50fa93030f9e2d49a55a7b14a.png\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step2.JPG\")
First find the sum of the tenths digit.
\The sum of the tenths digit ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=42d86b1f01125b1d68a420ffef768a40.png\")
.
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5577914d5906d9aa52c4ac82be85931f.png\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step3.JPG\")
Next find the difference of the ones digit.
\The difference of the ones digit ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1fc2c11d5069e4a33f9df18823b30a84.png\")
.
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ed6c695fa025ca9428643275073ff887.png\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
The difference is 5.2. \ \