Xiaotong's room is a square floor with a side length of 3 meters. The floor is paved with isosceles right-angled triangle tiles with a side length of 0.3 meters. How many floor tiles are needed in total?
小彤的房间是边长为3米的正方形地面，用直角边长为0.3米的等腰直角三角形瓷砖铺地，共需多少块地砖？
<gadget id="calculator">3 / 0.3</gadget>
<output>10</output>

<gadget id="calculator">10 * 10 * 2</gadget>
<output>200</output>

<result>200</result>