Uncle Li deposited 20,000 yuan in the bank for five years, with an annual interest rate of 5.5%. How much interest can Uncle Li earn when it expires?
李大爷把20000元钱存入银行，整存整取五年，年利率是5.5%．到期时李大爷能获得利息多少元．
<gadget id="calculator">5.5 / 100</gadget>
<output>0.055</output>

<gadget id="calculator">20_000 * 0.055 * 5</gadget>
<output>5_500</output>

<result>5_500</result>