There are 1,600 students in Guangming Primary School, and only 10% of the students have not participated in accident insurance. How many students participated in the insurance?
光明小学有学生1600人，只有1成的学生没有参加意外事故保险．参加了保险的学生有多少人？
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 - (1/10)</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">1_600 * (9/10)</gadget>
<output>1_440</output>

<result>1_440</result>