Class 1 of the third grade went to plant trees. On the first day, they planted 618 trees, and on the second day, they planted twice as many trees as on the first day. How many trees were planted in two days?
三年级一班去栽树，第一天栽了618棵，第二天栽的是第一天的2倍．两天一共栽了多少棵？
<gadget id="calculator">618 * 2</gadget>
<output>1_236</output>

<gadget id="calculator">1_236 + 618</gadget>
<output>1_854</output>

<result>1_854</result>