Xiaoming's family deposited 5,000 yuan in the bank on September 2, for a period of three years. If the annual interest rate is calculated at 3.5%, how much interest should be paid when it matures.
小明家9月2日存入银行5000元，定期三年，如果年利率按3.5%计算，到期时应得利息多少元．
<gadget id="calculator">3.5 / 100</gadget>
<output>0.035</output>

<gadget id="calculator">5_000 * 0.035 * 3</gadget>
<output>525</output>

<result>525</result>