Wang Gang deposits RMB 20,000 in the bank for half a year with an annual interest rate of 2.7%. How much is the total amount of principal and interest due to Wang Gang?
王钢把20000元人民币存入银行，定期半年，年利率是2.7%．到期时，王钢应得本金和利息一共多少元？
<gadget id="calculator">2.7 / 100</gadget>
<output>0.027</output>

<gadget id="calculator">20_000 * 0.027 * 0.5</gadget>
<output>270</output>

<gadget id="calculator">270 + 20_000</gadget>
<output>20_270</output>

<result>20_270</result>