Xiaoming's father's monthly labor remuneration income is 2,000 yuan. After deducting 1,600 yuan according to the regulations, the rest is subject to personal income tax at a rate of 20%. How much tax should he pay?
小明的爸爸这个月劳务报酬所得为2000元，按规定减去1600元后，剩下的按20%的税率缴纳个人所得税，他应纳税多少元？
<gadget id="calculator">2_000 - 1_600</gadget>
<output>400</output>

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

<gadget id="calculator">400 * (1/5)</gadget>
<output>80</output>

<result>80</result>