On the ground with a length of 16 meters and a width of 8 meters, how many square bricks with an area of 4 square decimeters are needed to pave the road?
在长16米，宽8米的地面上，用面积是4平方分米的方砖铺路面，需要多少块？
<gadget id="calculator">16 * 10</gadget>
<output>160</output>

<gadget id="calculator">8 * 10</gadget>
<output>80</output>

<gadget id="calculator">80 / 4</gadget>
<output>20</output>

<gadget id="calculator">160 * 20</gadget>
<output>3_200</output>

<result>3_200</result>