There are 60 students in Class 1 and Class 2 of the fourth grade. The average donation for the Indonesian tsunami in Class 1 is 15 yuan, and the average donation for each person in Class 2 is 17 yuan. How much did the two classes donate in total?
四年级一班和二班都是60名同学，一班平均每人为印尼海啸损款15元，二班平均每人为印尼海啸损款17元，这两个班一共捐款多少元？
<gadget id="calculator">15 * 60</gadget>
<output>900</output>

<gadget id="calculator">17 * 60</gadget>
<output>1_020</output>

<gadget id="calculator">900 + 1_020</gadget>
<output>1_920</output>

<result>1_920</result>