Xiao Ming reads a story book, from July 25th to August 3rd, how many days have he read it?
小明看一本故事书，从7月25日看到8月3日，一共看了多少天．
<gadget id="calculator">31 - 25</gadget>
<output>6</output>

<gadget id="calculator">6 + 1 + 3</gadget>
<output>10</output>

<result>10</result>