On April 14, 2010, a magnitude 7.1 earthquake occurred in Yushu County, Qinghai Province, my country. The teachers and students of the six grades of the Experimental Primary School spontaneously donated a total of 3701.2 yuan, of which the teacher donated 1600 yuan. How much is the average donation of each grade?
2010年4月14日，我国青海玉树县发生了7.1级的大地震．实验小学6个年级的师生自发捐款共3701.2元，其中老师捐款1600元，平均每个年级的学生捐款多少元？
<gadget id="calculator">3_701.2 - 1_600</gadget>
<output>2_101.2</output>

<gadget id="calculator">2_101.2 / 6</gadget>
<output>350.2</output>

<result>350.2</result>