An orchard is 1 km long and 50 meters wide. Each tree covers an area of 5 square meters. How many trees are there in this orchard?
一个果园，长1千米，宽50米，每棵树占地面积是5平方米，请问，这个果园一共多少棵树？
<gadget id="calculator">50 / 5</gadget>
<output>10</output>

<gadget id="calculator">1 * 1_000 * 10</gadget>
<output>10_000</output>

<result>10_000</result>