Mom deposits 20,000 yuan in the bank for one year, and the annual interest is 3.25%. How much is the total principal and interest at maturity?
妈妈在银行存入2万元，定期一年，年利息是3.25%．到期时，本金和利息一共是多少元？
<gadget id="calculator">2 * 10_000</gadget>
<output>20_000</output>

<gadget id="calculator">3.25 / 100</gadget>
<output>0.0325</output>

<gadget id="calculator">20_000 * 0.0325 * 1</gadget>
<output>650</output>

<gadget id="calculator">20_000 + 650</gadget>
<output>20_650</output>

<result>20_650</result>