If the annual interest rate of the three-year treasury bond is 3.40%, and Uncle Wang buys a three-year treasury bond of 5,000 yuan, how much will he get back with the principal and interest at maturity? (Treasury bonds do not pay interest tax)
若三年期国债的年利率是3.40%，王叔叔购买三年期国债5000元，到期连本带息共取回多少元．(国债不缴纳利息税)
<gadget id="calculator">3.4 / 100</gadget>
<output>0.034</output>

<gadget id="calculator">5_000 * 0.034 * 3</gadget>
<output>510</output>

<gadget id="calculator">5_000 + 510</gadget>
<output>5_510</output>

<result>5_510</result>