A classroom is 8 meters long, 6 meters wide, and 4 meters high. Now paint the surroundings and the roof of the classroom, deducting the area of doors and windows of 25 square meters. If 240 grams of paint is required per square meter, how many kilograms of paint are required in total?
一间教室长8米，宽6米，高4米．现在粉刷教室的四周和屋顶，扣除门窗面积25平方米．如果每平方米需要涂料240克，共需涂料多少千克？
<gadget id="calculator">8 * 6</gadget>
<output>48</output>

<gadget id="calculator">8 * 4</gadget>
<output>32</output>

<gadget id="calculator">6 * 4</gadget>
<output>24</output>

<gadget id="calculator">32 + 24</gadget>
<output>56</output>

<gadget id="calculator">56 * 2</gadget>
<output>112</output>

<gadget id="calculator">112 - 25</gadget>
<output>87</output>

<gadget id="calculator">48 + 87</gadget>
<output>135</output>

<gadget id="calculator">240 / 1_000</gadget>
<output>6/25 = around 0.24</output>

<gadget id="calculator">135 * (6/25)</gadget>
<output>162/5 = around 32.4</output>

<result>162/5 = around 32.4</result>