There is a concrete floor in the school playground, which is 40 meters long and 32 meters wide. Now we want to increase its length and width by 5 meters respectively. How many square meters has the playground area increased?
学校操场有一块水泥地，长40米，宽32米，现在要把它的长和宽分别增加5米，请问操场的面积增加了多少平方米？
<gadget id="calculator">40 + 5</gadget>
<output>45</output>

<gadget id="calculator">32 + 5</gadget>
<output>37</output>

<gadget id="calculator">45 * 37</gadget>
<output>1_665</output>

<gadget id="calculator">40 * 32</gadget>
<output>1_280</output>

<gadget id="calculator">1_665 - 1_280</gadget>
<output>385</output>

<result>385</result>