A conference room is 12 meters long and 7.2 meters wide. If you use square floor tiles with a side length of 3 decimeters, how many tiles are needed in total?
一间会议室长12米，宽7.2米，如果用边长3分米的正方形地面砖铺地，一共需要多少块？
<gadget id="calculator">12 * 7.2</gadget>
<output>86.4</output>

<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">(3/10) * (3/10)</gadget>
<output>9/100 = around 0.09</output>

<gadget id="calculator">86.4 / (9/100)</gadget>
<output>960</output>

<result>960</result>