Xiaopang reads a book, and he reads 32 pages on the first day, which is 4 pages less than twice the number he read on the second day. How many pages did he read on the second day?
小胖看一本书，第一天看32页，比第二天看的2倍少4页，第二天看了多少页？
<gadget id="calculator">32 + 4</gadget>
<output>36</output>

<gadget id="calculator">36 / 2</gadget>
<output>18</output>

<result>18</result>