Xiaoming's living room is 6 meters long and 4 meters wide. If you use floor tiles with a side length of 2 decimeters to pave the floor of the living room, how many such floor tiles are needed?
小明家的客厅长6米，宽4米，若用边长是2分米的地砖铺客厅的地面，需要这样的地砖多少块？
<gadget id="calculator">2 * 2</gadget>
<output>4</output>

<gadget id="calculator">100 / 4</gadget>
<output>25</output>

<gadget id="calculator">6 * 4 * 25</gadget>
<output>600</output>

<result>600</result>