Xiaoming's family went for a physical examination. Xiaoming was 0.23 meters shorter than his mother, and his father was 0.27 meters taller than Xiaoming. Who is taller, father or mother? How many meters high?
小明一家人去体检，小明比妈妈矮0.23米，爸爸比小明高0.27米，爸爸和妈妈谁高？高多少米？
<gadget id="calculator">0.27 - 0.23</gadget>
<output>0.04</output>

<result>0.04</result>