According to statistics, on average, 4.08 trees will be cut down for every 10,000 greeting cards produced. According to this calculation, Guangzhou currently has a population of about 10 million. If each person has to send a New Year's card, how many trees will be felled to produce these New Year's cards?
据统计，平均每生产1万张贺卡，就要砍伐4.08棵树．照这样计算，广州目前约有1000万人口，如果每人都要寄出一张贺年卡，那么生产这些贺年卡要砍伐多少棵大树？
<gadget id="calculator">1_000 / 1</gadget>
<output>1_000</output>

<gadget id="calculator">1_000 * 4.08</gadget>
<output>4_080</output>

<result>4_080</result>