The tiles in the room are covered exactly with 270 square bricks with an area of 16 square decimeters. If you use square bricks with a side length of 3 decimeters, how many pieces are needed?
房间里铺瓷砖，用面积16平方分米的方砖270块正好铺满．如果用边长是3分米的方砖，需要多少块？
<gadget id="calculator">16 * 270</gadget>
<output>4_320</output>

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

<gadget id="calculator">4_320 / 9</gadget>
<output>480</output>

<result>480</result>