Xiao Ming reads a storybook, 25 pages a day for 3 days, how many pages should he start reading on the fourth day?
小明读一本故事书，每天读25页，读了3天，第四天他应从多少页开始读起．
<gadget id="calculator">25 * 3</gadget>
<output>75</output>

<gadget id="calculator">75 + 1</gadget>
<output>76</output>

<result>76</result>