![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
The expression is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c206ced40c15fa09f1f472e5015ed525.png\")
.
Place value chart for 3.2 and 4.7.
\ ![\"\"](\"http://www.mathskey.com/userfiles/image/Library/Place_Value_Chart.gif\")
| \
\ | \
\
\ | \
\
\ | \
\
3 \ | \
\
2 \ | \
\
\ | \
\
\ | \
| \
\ | \
\
\ | \
\
\ | \
\
4 \ | \
\
7 \ | \
\
\ | \
\
\ | \
\
Line up the decimal points and draw a line below the numbers.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2ed6b9e0a9fce53954dce96bb71c39a1.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=f1289681dce435562261fcb0cf63f8aa.png\")
.
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=6a55adcdb9a4690644438d4964e5718c.png\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step3.JPG\")
Next find the sum of the ones digit.
\The sum of the ones digit, ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=6fdc022a0f876c986fbeef5574e98170.png\")
.
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=24bf4103719cc3b1dab337a5dcb13a2e.png\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
The sum of ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c206ced40c15fa09f1f472e5015ed525.png\")
is 7.9.