Xiao Fang reads a 548-page book. I read 146 pages on the first day and 207 pages on the second day. How many pages are left in this book?
小方看一本548页的书．第一天看了146页，第二天看了207页．这本书还有多少页没看？
<gadget id="calculator">548 - 146 - 207</gadget>
<output>195</output>

<result>195</result>