The area of a conference room is 65 square meters, and the floor is paved with tiles with a side length of 50 cm. How many tiles are needed in total?
一间会议室的面积是65平方米，用边长50厘米的瓷砖铺地，共需这种瓷砖多少块？
<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/2) * (1/2)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">65 / (1/4)</gadget>
<output>260</output>

<result>260</result>