A story book has 280 pages in total. Xiaohua read 25% of the whole book on the first day and 3/10 of the whole book on the second day. How many more pages did she read on the second day than on the first day?
一本故事书共280页，小华第一天读了全书的25%，第二天读了全书的(3/10)，第二天比第一天多读多少页？
<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(3/10) - (1/4)</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">280 * (1/20)</gadget>
<output>14</output>

<result>14</result>