The starting price of a taxi in Pingchang is 4 yuan, and after 2 kilometers, it will be charged at 1 yuan per kilometer. Uncle Li takes a taxi from home to school to pick up things. The distance from home to school is 6 kilometers. How much is the taxi fare?
平昌出租车起步价是4元，2千米以后按每千米1元计费，李叔叔从家坐出租车到学校拿东西，从家到学校距离是6千米，李叔叔回家后需付多少出租车费用？
<gadget id="calculator">6 - 2</gadget>
<output>4</output>

<gadget id="calculator">1 * 4</gadget>
<output>4</output>

<gadget id="calculator">4 + 4</gadget>
<output>8</output>

<result>8</result>