There are 98 pages in a story book, and you read x pages every day on average. After reading it for 6 days, how many pages are left?
一本故事书有98页，平均每天看x页，看了6天，还剩多少页．
<gadget id="calculator">98 - 6</gadget>
<output>92</output>

<result>92</result>