$\"\"$

The expression is $\"\"$

Place value chart for 4 and 7.2

$\"\"$

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

$\"\"$ \ \

$\"\"$

First find the addition of the ones digit.

The addition of the ones digit $\"\"$

$\"\"$

Next find the addition of the tens digit.

The addition of the tens digit $\"\"$

$\"\"$

The sum is $\"\"$ .