Xiaodong borrowed the book "Today I am the Flag Raiser" from the library last month. He read 20% of the book in the first week, 54 pages in the second week, and 106 pages in two weeks. How many pages are there?
小东上个月向图书室借了《今天我是升旗手》这本书，第一周看了全书的20%，第二周看了54页，两周共看了106页，这本书共有多少页？
<gadget id="calculator">106 - 54</gadget>
<output>52</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">52 / (1/5)</gadget>
<output>260</output>

<result>260</result>