Sunshine Primary School bought back 35 sets of prizes for outstanding three-good students and outstanding class cadres, each set costing 15 yuan. How much does it cost to buy these prizes?
阳光小学为优秀三好学生和优秀班干部购回奖品35套，每套15元，买这些奖品共需多少元？
<gadget id="calculator">35 * 15</gadget>
<output>525</output>

<result>525</result>