Xiao Ming’s family raised 300 chickens last year, and this year they raised 50 more than last year’s three times. How many chickens are raised this year?
小明家去年养鸡300只，今年比去年养的3倍多50只，今年养鸡多少只？
<gadget id="calculator">300 * 3</gadget>
<output>900</output>

<gadget id="calculator">900 + 50</gadget>
<output>950</output>

<result>950</result>