Dad deposited 20,000 yuan in the bank in January last year, and the term is two years. If the annual interest rate is 2.5%, how much yuan can be withdrawn when it expires?
爸爸去年一月份把20000元存入银行，定期是二年，如果年利率是2.5%，到期时一共可取回多少元．
<gadget id="calculator">2.5 / 100</gadget>
<output>0.025</output>

<gadget id="calculator">20_000 * 0.025 * 2</gadget>
<output>1_000</output>

<gadget id="calculator">20_000 + 1_000</gadget>
<output>21_000</output>

<result>21_000</result>