In March 2011, Uncle Ma deposited 6,000 yuan in the bank for a period of three years. If the annual interest rate is 4.5%, how much money can Uncle Ma get back after maturity? (interest tax free)
2011年3月马叔叔把6000元存入银行，定期三年，如果年利率是4.5%，马叔叔到期后可以取回多少钱？(免利息税)
<gadget id="calculator">4.5 / 100</gadget>
<output>0.045</output>

<gadget id="calculator">6_000 * 0.045 * 3</gadget>
<output>810</output>

<gadget id="calculator">6_000 + 810</gadget>
<output>6_810</output>

<result>6_810</result>