The school wants to repaint the classroom. It is known that the length of the classroom is 8m, the width is 6m, and the height is 3m. The doors, windows and blackboards are 21.6m**2. If it costs 5 yuan for paint per square meter, how much will it cost to paint the classroom? ?
学校要粉刷新教室，已知教室的长是8m，宽是6m，高是3m，扣除门窗和黑板21.6m**2，如果每平方米需要花5元涂料费，粉刷这个教室需要花多少元？
<gadget id="calculator">8 * 6</gadget>
<output>48</output>

<gadget id="calculator">8 * 3</gadget>
<output>24</output>

<gadget id="calculator">6 * 3</gadget>
<output>18</output>

<gadget id="calculator">24 + 18</gadget>
<output>42</output>

<gadget id="calculator">42 * 2</gadget>
<output>84</output>

<gadget id="calculator">84 - 21.6</gadget>
<output>62.4</output>

<gadget id="calculator">48 + 62.4</gadget>
<output>110.4</output>

<gadget id="calculator">110.4 * 5</gadget>
<output>552</output>

<result>552</result>