There are 510 new first-year students this year, 69 fewer than last year. How many first-year students were enrolled last year?
今年一年级新同学有510人，去年比今年少招收69人．去年招收一年级学生多少人？
<gadget id="calculator">510 - 69</gadget>
<output>441</output>

<result>441</result>