Teacher Wang's salary in March 2006 was 1,800 yuan. According to regulations, the part of the monthly personal income exceeding 1,600 yuan is subject to personal income tax at a rate of 5%. How much tax should Mr. Wang pay this month?
王老师2006年3月的工资是1800元．按照规定，每月的个人收入超过1600元的部分按5%的税率缴纳个人所得税，王老师这个月应缴纳税多少元？
<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>