Uncle Wang went on a business trip on February 26 this year and returned on March 6. How many days did he travel in total?
王叔叔今年2月26日出差，到3月6日返回，他一共出差多少天．
<gadget id="calculator">28 - 26</gadget>
<output>2</output>

<gadget id="calculator">2 + 1 + 6</gadget>
<output>9</output>

<result>9</result>