Last year, Guangming Primary School purchased "Ping An Insurance" for 400 students in the school. The insurance amount was 5,000 yuan per person, and the insurance period was one year. Calculated according to the annual insurance premium rate of 0.4%, how much should all the students in the school pay for the insurance premium last year?
光明小学去年为全校400名学生投保"平安保险"，保险金额每人5,000元，保险期限一年．按年保险费率0.4%计算，去年全校学生共应缴纳保险费多少元？
<gadget id="calculator">0.4 / 100</gadget>
<output>0.004</output>

<gadget id="calculator">5_000 * 0.004 * 400</gadget>
<output>8_000</output>

<result>8_000</result>