There are 6 classes in the third grade, with 40 students in each class. In the "Earthquake Relief" donation activity, each person donated an average of 15 yuan. How much did the third grade donate in total?
三年级有6个班，每班40人，在"抗震救灾"捐款活动中平均每人捐款15元．三年级一共捐款多少元？
<gadget id="calculator">6 * 40 * 15</gadget>
<output>3_600</output>

<result>3_600</result>