There are 807 deer and rabbits in the pine forest, among which there are 258 deer, how many rabbits are there?
松树林里有小鹿和小兔共807只，其中小鹿有258只，小兔有多少只？
<gadget id="calculator">807 - 258</gadget>
<output>549</output>

<result>549</result>