$\"\"$

The expression is $\"\"$ .

Place value chart for 9.7 and 8.6.

$\"\"$

Line up the decimal points and draw a line below the numbers.

$\"\"$

First find the difference of the tenths digit.

The difference of the tenths digit $\"\"$ .

$\"\"$

Next find the difference of the ones digit.

The difference of the ones digit $\"\"$ .

$\"\"$

The difference of the expression is $\"\"$ .