Teacher Wang deposits 3,000 yuan in the bank for two years, and the annual interest rate is calculated at 2.25%. How much interest can he get when he matures?
王老师把3000元存入银行，定期二年，年利率按2.25%计算，到期可得利息多少元．
<gadget id="calculator">2.25 / 100</gadget>
<output>0.0225</output>

<gadget id="calculator">3_000 * 0.0225 * 2</gadget>
<output>135</output>

<result>135</result>