The area of a classroom is 72 square meters, and the floor is paved with floor tiles with a side length of 0.6 meters. How many floor tiles are needed in total?
一间教室的面积是72平方米，用边长0.6米的地砖铺地面，一共需要多少块地砖？
<gadget id="calculator">0.6 * 0.6</gadget>
<output>0.36</output>

<gadget id="calculator">72 / 0.36</gadget>
<output>200</output>

<result>200</result>