Mom bought a three-year treasury bond of 5,000 yuan in the bank, if the annual interest rate is 3.14%. How much can the mother withdraw the principal and interest after three years? (Treasuries do not pay interest tax)
妈妈在银行购买了三年期的国库券5000元，如果年利率是3.14%．三年到期后妈妈可取出本金和利息共多少元？(国库券不缴纳利息税)
<gadget id="calculator">3.14 / 100</gadget>
<output>0.0314</output>

<gadget id="calculator">5_000 * 0.0314 * 3</gadget>
<output>471</output>

<gadget id="calculator">5_000 + 471</gadget>
<output>5_471</output>

<result>5_471</result>