A house is 25 meters long and 15 meters wide. If the floor tiles are 80 yuan per square meter, how much does it cost to buy floor tiles to decorate this house?
一间房子长25米，宽15米．如果每平方米地板砖80元，装修这间房子需要多少钱来买地板砖？
<gadget id="calculator">25 * 15 * 80</gadget>
<output>30_000</output>

<result>30_000</result>