Xiaojun reads a 100-page book. After reading it for 7 days, there are still 37 pages to read. How many pages does Xiaojun read on average every day?
小军看一本100页的书，看了7天后，还有37页没看完，小军平均每天看多少页？
<gadget id="calculator">100 - 37</gadget>
<output>63</output>

<gadget id="calculator">63 / 7</gadget>
<output>9</output>

<result>9</result>