The school needs to build a wall with a length of 10 meters, a width of 0.25 meters and a height of 2 meters. It needs 500 bricks per cubic meter. How many bricks does the school need to buy?
学校要砌一道长10米，宽0.25米、高2米的墙，每立方米需要砖500块，学校需要买多少块砖？
<gadget id="calculator">10 * 0.25 * 2</gadget>
<output>5</output>

<gadget id="calculator">500 * 5</gadget>
<output>2_500</output>

<result>2_500</result>