A room is 6 meters long and 2 meters wide, and the floor is paved with square bricks with a side length of 2 decimeters. How many square bricks are needed in total?
一个房间长6米，宽2米，用边长2分米的方砖铺地，共需要多少块方砖？
<gadget id="calculator">2 * 2</gadget>
<output>4</output>

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

<gadget id="calculator">6 * 2 * 25</gadget>
<output>300</output>

<result>300</result>