Daqiang deposited 1,000 yuan last year, fixed term for 3 years, and the annual interest rate is 2.70%. How much is the interest tax he should pay when it matures?
大强去年存款1000元，定期3年，年利率是2.70%，到期时，他应缴纳利息税多少元．
<gadget id="calculator">2.7 / 100</gadget>
<output>0.027</output>

<gadget id="calculator">1_000 * 0.027 * 3</gadget>
<output>81</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">81 * (1/5)</gadget>
<output>81/5 = around 16.2</output>

<result>81/5 = around 16.2</result>