A book has 100 pages in total. If you read the whole book (3/10) on the first day, what page should you read on the second day?
一本书共100页，第一天看了全书的(3/10)，第二天应从第多少页看起．
<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">100 * (3/10)</gadget>
<output>30</output>

<gadget id="calculator">30 + 1</gadget>
<output>31</output>

<result>31</result>