Mom reads an 856-page novel. She reads 162 pages in the first week and 97 pages in the second week. How many pages are left?
妈妈读一本856页的小说，第一周看了162页，第二周看了97页，还剩多少页没有看？
<gadget id="calculator">856 - 162 - 97</gadget>
<output>597</output>

<result>597</result>