There are 60 students in Class 1 and Class 2 of the fourth grade. Class 1 donates an average of 12 yuan to the disaster area, and Class 2 has an average of 15 yuan per person. How much did the two classes donate in total?
四年级一班和二班都是60名同学，一班平均每人为为灾区损款12元，二班平均每人为为灾区损款15元，这两个班一共捐款多少元？
<gadget id="calculator">12 * 60</gadget>
<output>720</output>

<gadget id="calculator">15 * 60</gadget>
<output>900</output>

<gadget id="calculator">720 + 900</gadget>
<output>1_620</output>

<result>1_620</result>