A corridor is 4 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?
一条走方廊长4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">2 / 0.08</gadget>
<output>25</output>

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

<result>100</result>