Xiaohong is 7 years old this year, her father's age is 5 times that of Xiaohong's, how much older is her father's age than Xiaohong's?
小红今年7岁，爸爸的年龄是小红的5倍，爸爸的年龄比小红多多少岁．
<gadget id="calculator">7 * 5</gadget>
<output>35</output>

<gadget id="calculator">35 - 7</gadget>
<output>28</output>

<result>28</result>