The distance between Mingming's home and school is 0.8 kilometers, and the distance between Lingling's home and school is 2.5 times that of Mingming's home and school. The two went from home to school respectively, how many kilometers did Lingling have to walk more than Mingming?
明明家到学校是0.8千米，玲玲家到学校的路程是明明家到学校的2.5倍．两人分别从家到学校，玲玲比明明要多走多少千米？
<gadget id="calculator">0.8 * 2.5</gadget>
<output>2</output>

<gadget id="calculator">2 - 0.8</gadget>
<output>1.2</output>

<result>1.2</result>