There is a vegetable garden with a length of 25.5 meters and a width of 15 meters. If the length and width are increased by 5 meters, how many square meters will the area of the vegetable garden increase?
有一块长25.5米，宽15米的菜园，如果把长和宽都增加5米，菜园面积增加多少平方米．
<gadget id="calculator">25.5 * 5</gadget>
<output>127.5</output>

<gadget id="calculator">15 * 5</gadget>
<output>75</output>

<gadget id="calculator">5 * 5</gadget>
<output>25</output>

<gadget id="calculator">127.5 + 75 + 25</gadget>
<output>227.5</output>

<result>227.5</result>