Mom deposits 20,000 yuan in the bank. The deposit period is 3 years, and the annual interest rate is 3.24%. How much money will mother get back after the maturity?
妈妈把20000元存入银行，存期是3年，年利率是3.24%，到期后妈妈取回多少元？
<gadget id="calculator">3.24 / 100</gadget>
<output>0.0324</output>

<gadget id="calculator">20_000 * 0.0324 * 3</gadget>
<output>1_944</output>

<gadget id="calculator">20_000 + 1_944</gadget>
<output>21_944</output>

<result>21_944</result>