Xiaoming's house was decorated, and 480 square bricks with a side length of 3 decimeters were used to cover the floor of the study. If you use square bricks with an area of 16 square decimeters instead, how many pieces are needed?
小明家装修房屋，用边长3分米的方砖480块正好铺满书房的地面．如果改用面积16平方分米的方砖，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>