The length of a rectangular hall is 12.5 meters and the width is 9.6 meters. How many square floor tiles with a side length of 0.4 meters are used to pave the floor?
一间长方形大厅的长是12.5米，宽是9.6米，用边长为0.4米的正方形地砖铺地，需要多少块？
<gadget id="calculator">0.4 * 0.4</gadget>
<output>0.16</output>

<gadget id="calculator">9.6 / 0.16</gadget>
<output>60</output>

<gadget id="calculator">12.5 * 60</gadget>
<output>750</output>

<result>750</result>