Liangliang's father is 1.8 meters tall, Liangliang is 0.4 meters shorter than his father, and Liangliang's mother is 0.2 meters taller than Liangliang. How tall is Liangliang's mother?
亮亮的爸爸身高1.8米，亮亮比爸爸矮0.4米，亮亮的妈妈又比亮亮高0.2米，亮亮的妈妈身高多少米？
<gadget id="calculator">1.8 - 0.4</gadget>
<output>1.4</output>

<gadget id="calculator">1.4 + 0.2</gadget>
<output>1.6</output>

<result>1.6</result>