The area of a house is 115.2 square meters, and the floor is paved with square tiles with a side length of 8 decimeters. How many pieces of this kind of tiles are needed in total?
一座房屋的面积是115.2平方米，用边长8分米的正方形瓷砖铺地，共需这种瓷砖多少块？
<gadget id="calculator">8 / 10</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(4/5) * (4/5)</gadget>
<output>16/25 = around 0.64</output>

<gadget id="calculator">115.2 / (16/25)</gadget>
<output>180</output>

<result>180</result>