The school plans to lay floor tiles for a classroom with a length of 8 meters and a width of 5.2 meters. The floor is paved with square bricks with a side length of 40 cm. How many square bricks are needed?
学校准备给长8米，宽5.2米的教室铺地砖，用边长40厘米的方砖铺地，需要这种方砖多少块？
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(2/5) * (2/5)</gadget>
<output>4/25 = around 0.16</output>

<gadget id="calculator">5.2 / (4/25)</gadget>
<output>32.5</output>

<gadget id="calculator">8 * 32.5</gadget>
<output>260</output>

<result>260</result>