A swimming pool is 25 meters long, 10 meters wide, and 2 meters deep. How many square bricks with an area of 15 square decimeters are pasted on the four walls and bottom of the pool?
游泳池长25米，宽10米，深2米，在池的四壁和池底贴上面积为15平方分米的方砖，共需多少块？
<gadget id="calculator">25 * 10</gadget>
<output>250</output>

<gadget id="calculator">25 * 2</gadget>
<output>50</output>

<gadget id="calculator">10 * 2</gadget>
<output>20</output>

<gadget id="calculator">50 + 20</gadget>
<output>70</output>

<gadget id="calculator">70 * 2</gadget>
<output>140</output>

<gadget id="calculator">250 + 140</gadget>
<output>390</output>

<gadget id="calculator">390 / 0.15</gadget>
<output>2_600</output>

<result>2_600</result>