Uncle Zhang used 8,000 yuan to purchase construction bonds on January 1, 2006, which expired on January 1, 2007. If the annual interest rate of construction bonds is 2.85% (construction bonds are tax-free), how much will Uncle Zhang get in total after the maturity of the principal and interest?
张叔叔2006年1月1日用8000元购买建设债券，2007年1月1日到期．如果建设债券的年利率是2.85%(建设债券免税)，到期后张叔叔拿到的本金和利息一共多少元？
<gadget id="calculator">2.85 / 100</gadget>
<output>0.0285</output>

<gadget id="calculator">8_000 * 0.0285 * 1</gadget>
<output>228</output>

<gadget id="calculator">8_000 + 228</gadget>
<output>8_228</output>

<result>8_228</result>