The chicken farm originally raised 80,000 chickens in total. 12,800 pieces were sold for the first time, and 26,000 pieces were sold for the second time. How many thousands of chickens are there in the chicken farm?
养鸡场原来一共养了8万只鸡．第一次卖了1.28万只，第二次卖了2.6万只．养鸡场现在还养有多少万只鸡？
<gadget id="calculator">8 - 1.28 - 2.6</gadget>
<output>4.12</output>

<result>4.12</result>