For "welcome inspection", the school paints the classroom, the classroom is 9m long, 6m wide, and 3m high, and the area after deducting doors and windows is 18.4m**2. If you need to spend 5 yuan for paint per square meter. How much would it cost to paint this classroom?
为"迎检"，学校粉刷教室，教室长9m、宽6m、高3m，扣除门窗的面积18.4m**2．如果每平方米需要花5元涂料费．则粉刷这个教室需要花费多少元？
<gadget id="calculator">36 - 18.4</gadget>
<output>17.6</output>

<gadget id="calculator">54 + 54 + 17.6</gadget>
<output>125.6</output>

<gadget id="calculator">125.6 * 5</gadget>
<output>628</output>

<result>628</result>