Xiao Ming's father bought 3,000 yuan of national construction bonds, fixed for 3 years. If the annual interest rate is 2.89%, how much yuan can he get in total for the principal and interest when it matures?
小明的爸爸买了3000元的国家建设债券，定期3年，如果年利率是2.89%，到期时他可以获得本金和利息一共多少元？
<gadget id="calculator">2.89 / 100</gadget>
<output>0.0289</output>

<gadget id="calculator">3_000 * 0.0289 * 3</gadget>
<output>260.1</output>

<gadget id="calculator">3_000 + 260.1</gadget>
<output>3_260.1</output>

<result>3_260.1</result>