All the students of Hongxing Primary School went to the spring outing. Each car took 45 people, and rented 10 cars and 16 seats were vacant. How many students participated in the spring outing?
红星小学全体学生去春游，每辆车坐45人，租10辆车空了16个座位，一共有多少学生参加春游活动？
<gadget id="calculator">45 * 10</gadget>
<output>450</output>

<gadget id="calculator">450 - 16</gadget>
<output>434</output>

<result>434</result>