There are 250 tons of wheat in warehouse A, and the wheat in warehouse B is 30 tons more than twice that of grain warehouse A. How many tons of wheat are there in the two warehouses?
甲粮库有250吨小麦，乙粮库的小麦比甲粮库的2倍还多30吨，两个仓库共有小麦多少吨？
<gadget id="calculator">250 * 2</gadget>
<output>500</output>

<gadget id="calculator">500 + 30</gadget>
<output>530</output>

<gadget id="calculator">250 + 530</gadget>
<output>780</output>

<result>780</result>