A classroom is 8 meters long, 6 meters wide, and 3 meters high, and the surrounding and top surfaces are painted with lime. 22 square meters of doors and windows are deducted, and 200 grams of lime is used per square meter. How many kilograms of lime are used in total?
一间教室长8米，宽6米，高3米，用石灰粉刷四周和顶面．扣去门窗22平方米，每平方米用石灰200克，一共用多少千克石灰？
<gadget id="calculator">8 * 6</gadget>
<output>48</output>

<gadget id="calculator">8 * 3 * 2</gadget>
<output>48</output>

<gadget id="calculator">6 * 3 * 2</gadget>
<output>36</output>

<gadget id="calculator">36 - 22</gadget>
<output>14</output>

<gadget id="calculator">48 + 48 + 14</gadget>
<output>110</output>

<gadget id="calculator">200 / 1_000</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">110 * (1/5)</gadget>
<output>22</output>

<result>22</result>