Xiaohua reads a book and plans to finish it in 10 days, but actually reads 3 pages more than planned every day, and ends up finishing it in 8 days. How many pages does the book have?
小华读一本书，计划10天读完，实际每天比计划多读3页，结果8天读完，这本书共有多少页？
<gadget id="calculator">3 * 8</gadget>
<output>24</output>

<gadget id="calculator">10 - 8</gadget>
<output>2</output>

<gadget id="calculator">24 / 2</gadget>
<output>12</output>

<gadget id="calculator">10 * 12</gadget>
<output>120</output>

<result>120</result>