Xiao Ming's family wants to paint the surrounding walls and ceiling of the living room. It is known that the length of the living room is 6m, the width is 5m, and the height is 3m, and the area of doors and windows is 10.4m**2. If the cost of materials is 5.4 yuan per square meter, how much will it cost to paint the living room?
小明家要粉刷客厅的四周墙壁及天花板．已知客厅长6m，宽5m，高3m，扣除门窗面积10.4m**2．如果每平方米需要5.4元工料费，粉刷客厅一共需要多少钱？
<gadget id="calculator">6 + 5</gadget>
<output>11</output>

<gadget id="calculator">11 * 2 * 3</gadget>
<output>66</output>

<gadget id="calculator">5 * 6</gadget>
<output>30</output>

<gadget id="calculator">66 + 30</gadget>
<output>96</output>

<gadget id="calculator">5.4 * 96</gadget>
<output>518.4</output>

<result>518.4</result>