Xiaohua reads a book and reads 8 pages a day for 5 days, and there are 24 pages left. How many pages are there in this book?
小华看一本书，每天看8页，看了5天，还剩24页，这本书共有多少页．
<gadget id="calculator">8 * 5</gadget>
<output>40</output>

<gadget id="calculator">40 + 24</gadget>
<output>64</output>

<result>64</result>