Guangming Primary School has 3 classes in grades 4, 5, and 6. When donating to the earthquake-stricken area, the fourth grade donated 180.2 yuan, the fifth grade donated 250.8 yuan, and the sixth grade donated 325 yuan. How much is the average donation per class?
光明小学四、五、六年级各有3个班：在一次为地震灾区捐款时，四年级捐180.2元，五年级捐250.8元，六年级捐325元．平均每班捐多少元？
<gadget id="calculator">180.2 + 250.8 + 325</gadget>
<output>756</output>

<gadget id="calculator">3 * 3</gadget>
<output>9</output>

<gadget id="calculator">756 / 9</gadget>
<output>84</output>

<result>84</result>