Xiao Wang's mother deposited 2,000 yuan in the bank on November 2, with a fixed term of two years. If the annual interest rate is calculated at 2.5% (from October 9, personal income tax will be temporarily exempted from interest income from savings deposits), how much interest should be paid when it matures? Yuan.
小王妈11月2日存入银行2000元，定期二年，如果年利率按2.5%计算(10月9日起，对储蓄存款利息所得暂免征收个人所得税)，到期时应得利息多少元．
<gadget id="calculator">2.5 / 100</gadget>
<output>0.025</output>

<gadget id="calculator">2_000 * 0.025 * 2</gadget>
<output>100</output>

<result>100</result>