If a room is paved with floor tiles with a side length of 2 decimeters, 144 pieces are needed. If the floor is paved with floor tiles with a side length of 3 decimeters, how many pieces are needed?
一间房间，用边长2分米的地砖铺地，需要用144块，如果用边长为3分米的地砖铺地，需要多少块？
<gadget id="calculator">2 * 2 * 144</gadget>
<output>576</output>

<gadget id="calculator">3 * 3</gadget>
<output>9</output>

<gadget id="calculator">576 / 9</gadget>
<output>64</output>

<result>64</result>