A story book has a total of 98 pages. Xiao Ming has 18 pages left after reading it for 8 days. How many pages does he read on average every day?
一本故事书一共有98页，小明看了8天后还剩下18页，他平均每天看多少页．
<gadget id="calculator">98 - 18</gadget>
<output>80</output>

<gadget id="calculator">80 / 8</gadget>
<output>10</output>

<result>10</result>