Mr. Li deposits 4,000 yuan in the bank for a period of 3 years, with an annual interest rate of 4.25%. How much will the bank pay Mr. Li when it matures?
李老师把4000元存入银行，定期3年，年利率4.25%，到期时银行应付给李老师多少元？
<gadget id="calculator">4.25 / 100</gadget>
<output>0.0425</output>

<gadget id="calculator">4_000 * 0.0425 * 3</gadget>
<output>510</output>

<gadget id="calculator">4_000 + 510</gadget>
<output>4_510</output>

<result>4_510</result>