A house needs to be paved with square bricks, and the square bricks with a side length of 3 decimeters need 480 yuan. If you use square bricks with an area of 16 square decimeters instead, how many pieces are needed?
一间房子要用方砖铺地，用边长3分米的方砖铺地，需要480块．如果改用面积16平方分米的方砖铺，需要多少块？
<gadget id="calculator">3 * 3 * 480</gadget>
<output>4_320</output>

<gadget id="calculator">4_320 / 16</gadget>
<output>270</output>

<result>270</result>