Lili is 8 years old this year, and her mother is 4 times as old as Lili this year. How much older is her mother than Lili?
丽丽今年8岁，妈妈今年的岁数是丽丽的4倍，妈妈比丽丽大多少岁？
<gadget id="calculator">8 * 4</gadget>
<output>32</output>

<gadget id="calculator">32 - 8</gadget>
<output>24</output>

<result>24</result>