Xiao Ling reads a story book, and she reads 72 pages on the first day, and twice as much on the second day. How many pages does Xiao Ling read in total in the past two days?
小玲看一本故事书，第一天看了72页，第二天看的是第一天的2倍，小玲这两天一共看了多少页．
<gadget id="calculator">1 + 2</gadget>
<output>3</output>

<gadget id="calculator">72 * 3</gadget>
<output>216</output>

<result>216</result>