A primary school student weighs about 20 kg. How many such primary school students weigh about 1 ton.
一个小学生的体重约是20千克．多少名这样的小学生的体重大约是1吨．
<gadget id="calculator">1_000 / 20</gadget>
<output>50</output>

<gadget id="calculator">1 * 50</gadget>
<output>50</output>

<result>50</result>