The farm raises 120 ducks, 20 more than chickens, and 230 more geese than chickens. How many geese are raised?
饲养场养鸭120只，比鸡多20只，养的鹅比鸡多230只，养鹅多少只？
<gadget id="calculator">120 - 20</gadget>
<output>100</output>

<gadget id="calculator">100 + 230</gadget>
<output>330</output>

<result>330</result>