A book has 200 pages, Xiaoyu reads 26 pages every day, how many pages are left after reading for a week?
一本书有200页，小玉每天看26页，看了一星期后还剩多少页没看？
<gadget id="calculator">26 * 7</gadget>
<output>182</output>

<gadget id="calculator">200 - 182</gadget>
<output>18</output>

<result>18</result>