A storybook has 468 pages in total, I have already read 104 pages, and plan to finish the rest in 13 days. How many pages do you read on average per day?
一本故事书共有468页，我已经看了104页，剩下的计划13天看完．平均每天要看多少页？
<gadget id="calculator">468 - 104</gadget>
<output>364</output>

<gadget id="calculator">364 / 13</gadget>
<output>28</output>

<result>28</result>