The side length of a square floor tile is 0.5 meters. If you want to pave a 27 square meter house, how many floor tiles are needed?
一种正方形地板砖的边长是0.5米，如果要铺一间27平方米的房子，需要多少块地砖？
<gadget id="calculator">0.5 * 0.5</gadget>
<output>0.25</output>

<gadget id="calculator">27 / 0.25</gadget>
<output>108</output>

<result>108</result>