Xiao Ming's mother is 26 years older than Xiao Ming, and his father is 38 years old this year, 4 years older than his mother. How old is Xiao Ming this year? (column equation solution)
小明的妈妈比小明大26岁，爸爸今年38岁，比妈妈大4岁，小明今年多大了？(列方程解答)
<gadget id="calculator">26 + 4</gadget>
<output>30</output>

<gadget id="calculator">38 - 30</gadget>
<output>8</output>

<result>8</result>