A child weighs about 25 kilograms, and how many children weigh about 1 ton.
一个小朋友大约重25千克，多少个小朋友大约重1吨．
<gadget id="calculator">1_000 / 25</gadget>
<output>40</output>

<gadget id="calculator">1 * 40</gadget>
<output>40</output>

<result>40</result>