Qiqi is 12 years old this year, and her mother is 36 years old this year. How much older was her mother than Qiqi 5 years ago.
琪琪今年12岁，她妈妈今年36岁，5年前妈妈比琪琪大多少岁．
<gadget id="calculator">36 - 12</gadget>
<output>24</output>

<result>24</result>