In a story book, 24 pages have been read, and the number of pages that have not been read is 6 times the number of pages that have been read. How many pages are left to be read?
一本故事书，已经看了24页，没看的页数是已看的6倍，还有多少页没看．
<gadget id="calculator">24 * 6</gadget>
<output>144</output>

<result>144</result>