Xiao Ming's father's monthly salary is 1,800 yuan. If the part that exceeds 1,600 yuan needs to pay 5% personal income tax, how much tax will Xiao Ming's father pay every month?
小明的爸爸每月工资是1800元，如果按超过1600元部分需要缴纳5%的个人所得税的规定交税，那么小明的爸爸每月交税多少元．
<gadget id="calculator">1_800 - 1_600</gadget>
<output>200</output>

<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">200 * (1/20)</gadget>
<output>10</output>

<result>10</result>