Xiao Ming is 11 years old this year, and his mother is three times older than him by 3 years. What is the age difference between the two of them after 5 years?
小明今年11岁，妈妈的年龄比他的3倍还多3岁，5年后他们两人的年龄差是多少岁．
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">11 * 2</gadget>
<output>22</output>

<gadget id="calculator">22 + 3</gadget>
<output>25</output>

<result>25</result>