A corridor is 8 meters long and 2 meters wide. To pave the floor with square floor tiles with an area of 8 square decimeters, at least how many such floor tiles are needed?
一条走廊长8米，宽2米．用面积是8平方分米的正方形地砖铺地，至少需要这样的地砖多少块？
<gadget id="calculator">100 / 8</gadget>
<output>25/2 = around 12.5</output>

<gadget id="calculator">8 * 2 * (25/2)</gadget>
<output>200</output>

<result>200</result>