The school organized a tree-planting activity. 136 students in the fourth grade participated, and 16 people in the fifth grade were twice as many as the fourth grade. How many people in 5th grade attend?
学校组织植树活动，四年级有136人参加，五年级参加的人数比四年级的2倍少16人．五年级有多少人参加？
<gadget id="calculator">136 * 2</gadget>
<output>272</output>

<gadget id="calculator">272 - 16</gadget>
<output>256</output>

<result>256</result>