Donghai Village builds a cuboid swimming pool with a length of 50m, a width of 20m and a depth of 2m. Paste tiles on the surrounding walls and bottom of the swimming pool. How many square meters is the tiled area?
东海村修建一个长方体游泳池，游泳池长50m，宽20m，深2m．在游泳池的四周池壁和底面贴上瓷砖，贴瓷砖的面积是多少平方米？
<gadget id="calculator">50 * 20</gadget>
<output>1_000</output>

<gadget id="calculator">20 * 2</gadget>
<output>40</output>

<gadget id="calculator">2 * 50</gadget>
<output>100</output>

<gadget id="calculator">1_000 + 40 + 100</gadget>
<output>1_140</output>

<gadget id="calculator">1_140 * 2</gadget>
<output>2_280</output>

<gadget id="calculator">2_280 - 1_000</gadget>
<output>1_280</output>

<result>1_280</result>