Xiaolan is 9 years old this year, and her mother is 36 years old. What is the age difference between her mother and Xiaolan?
小兰今年9岁，妈妈今年36岁，妈妈和小兰相差多少岁？
<gadget id="calculator">36 - 9</gadget>
<output>27</output>

<result>27</result>