Students in the third and fourth grades of Guangming Primary School donated to the Hope Project. The third grade donated 625 yuan, and the fourth grade donated 240 yuan less than twice that of the third grade. How much is the total donation for the two grades?
光明小学三年级和四年级的同学为希望工程捐款，三年级捐了625元，四年级捐款比三年级的2倍少240元．两个年级一共捐款多少元？
<gadget id="calculator">625 * 2</gadget>
<output>1_250</output>

<gadget id="calculator">1_250 - 260</gadget>
<output>990</output>

<gadget id="calculator">990 + 625</gadget>
<output>1_615</output>

<result>1_615</result>