The school needs to build a wall with a length of 20m, a width of 24cm, and a height of 2m. It needs 525 bricks per cubic meter. How many bricks does the school need to buy?
学校要砌一道长20m，宽24cm、高2m的墙，每立方米需要砖525块，学校需要买多少块砖？
<gadget id="calculator">20 * 0.24 * 2</gadget>
<output>9.6</output>

<gadget id="calculator">9.6 * 525</gadget>
<output>5_040</output>

<result>5_040</result>