After the Yushu earthquake, students from our school actively donated money to support the reconstruction of the disaster area. Five classes in the second grade donated a total of 467 yuan, and four classes in the third grade donated a total of 343 yuan. How much is the average donation per class?
玉树地震后，我校同学为支援灾区重建积极捐款，二年级5个班共捐款467元，三年级4个班共捐款343元．平均每个班捐款多少元？
<gadget id="calculator">467 + 343</gadget>
<output>810</output>

<gadget id="calculator">5 + 4</gadget>
<output>9</output>

<gadget id="calculator">810 / 9</gadget>
<output>90</output>

<result>90</result>