Xiao Dingding reads a science and technology storybook, and has already read 42 pages, and the remaining pages are exactly 5 times the number of pages he has read. How many pages does Xiao Dingding not read?
小丁丁看一本科技故事书，已经看了42页，剩下的页数正好是已看的5倍，小丁丁还有多少页没有看？
<gadget id="calculator">42 * 5</gadget>
<output>210</output>

<result>210</result>