Xiaomei's home is 2.7 kilometers away from the school. She walks to school every morning and walks home after school in the afternoon. How many kilometers did Xiaomei walk in total during the two days she went to school?
小美家距学校2.7千米，她每天早晨步行去学校，下午放学步行回家．小美上学两天一共步行多少千米？
<gadget id="calculator">2.7 * 2 * 2</gadget>
<output>10.8</output>

<result>10.8</result>