Xiao Ming reads a book with 185 pages, and has already read 140 pages. He needs to finish the rest within 5 days. How many pages does he need to read on average every day?
小明看一本书有185页，已经看了140页，剩下的要在5天内看完，平均每天要看多少页？
<gadget id="calculator">185 - 140</gadget>
<output>45</output>

<gadget id="calculator">45 / 5</gadget>
<output>9</output>

<result>9</result>