Xiaojing reads a 180-page book. She reads 15 pages on the first day and the remaining 40% on the second day. What page should I start on the third day?
小静看一本180页的书，第一天看了15页，第二天又看了余下的40%．第三天应该从第几页看起？
<gadget id="calculator">180 - 15</gadget>
<output>165</output>

<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">165 * (2/5)</gadget>
<output>66</output>

<gadget id="calculator">15 + 66 + 1</gadget>
<output>82</output>

<result>82</result>