Xiao Pang wants to read a 120-page story book. He read 40 pages on the first day, and read 12 pages more on the second day than the first day. How many pages are left?
小胖要读一本120页的故事书，第一天读了40页，第二天比第一天多读12页，还有多少页没有读完？
<gadget id="calculator">40 + 40 + 12</gadget>
<output>92</output>

<gadget id="calculator">120 - 92</gadget>
<output>28</output>

<result>28</result>