In a book, Xiaofang read 53 pages on the first day, 64 pages on the second day, and left 147 pages unread. How many pages are there in total?
一本书，小芳第一天看了53页，第二天看了64页，还有147页没看，这本书一共有多少页？
<gadget id="calculator">53 + 64 + 147</gadget>
<output>264</output>

<result>264</result>