Dad: When I was 36 years old, you were only 8 years old. Xiao Ming: You are exactly three times mine this year. Do you know how old Xiao Ming is?
爸爸：我36岁时，你才8岁，小明：你今年正好是我的3倍，你知道小明今年几岁吗？
<gadget id="calculator">36 - 8</gadget>
<output>28</output>

<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">28 / 2</gadget>
<output>14</output>

<result>14</result>