A book has 104 pages, Xiao Ming reads 17 pages, and the rest takes 3 days to finish, how many pages do you read on average every day?
一本书有104页，小明看了17页，剩下的要3天看完，平均每天看多少页？
<gadget id="calculator">104 - 17</gadget>
<output>87</output>

<gadget id="calculator">87 / 3</gadget>
<output>29</output>

<result>29</result>