A 600-page story book, Xiao Ming read it in 4 days and there are 340 pages left, how many pages does he read on average every day?
一本600页的故事书，小明看了4天还剩340页，他平均每天看多少页书？
<gadget id="calculator">600 - 340</gadget>
<output>260</output>

<gadget id="calculator">260 / 4</gadget>
<output>65</output>

<result>65</result>