read a book (1/3) on the first day, read 3 pages more than the first day on the second day, and left 5 pages unread, how many pages does this book have?
一本书第一天看了(1/3)，第二天看的比第一天多3页，还剩5页没看，这本书共有多少页？
<gadget id="calculator">3 + 5</gadget>
<output>8</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3) - (1/3)</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">8 / (1/3)</gadget>
<output>24</output>

<result>24</result>