A piece of glass is 25 decimeters long and 8 decimeters wide. If it costs 8 yuan per square meter, how much does it cost per piece?
一块玻璃长25分米，宽8分米，如果每平方米要8元钱，每块要多少钱？
<gadget id="calculator">8 / 100</gadget>
<output>2/25 = around 0.08</output>

<gadget id="calculator">25 * (2/25) * 8</gadget>
<output>16</output>

<result>16</result>