Students in grades four, five and six went to the botanical garden. There were 84 students in grade four, four less than grade five, and four students in grade six were more than the sum of grades four and five. How many students in grade six go to the botanical garden?
四、五、六年级的同学去植物园，四年级有84人，比五年级少4人，六年级去的人数比四、五年级人数的和还多4人．六年级有多少名同学去植物园？
<gadget id="calculator">84 + 4 + 84 + 4</gadget>
<output>176</output>

<result>176</result>