Mom bought 2,000 yuan treasury bills, fixed for two years, the annual interest rate is 3.6%, how much more yuan can mother get when it expires.
妈妈买了2000元钱国库券，定期二年，年利率是3.6%，到期妈妈可以多得多少元钱．
<gadget id="calculator">3.6 / 100</gadget>
<output>0.036</output>

<gadget id="calculator">2_000 * 0.036 * 2</gadget>
<output>144</output>

<result>144</result>