Grandma Wang’s family raised 600 chickens last year, 89 fewer than this year. How many chickens did Grandma Wang’s family raise this year?
王奶奶家去年养了600只鸡，比今年少养了89只，王奶奶家今年养了多少只鸡？
<gadget id="calculator">600 + 89</gadget>
<output>689</output>

<result>689</result>