The cafeteria bought a bag of flour. I ate 8.5 kg on the first day and 12.6 kg on the second day, leaving 4.3 kg. How many kg is this bag of flour?
食堂买来一袋面粉．第一天吃了8.5千克，第二天吃了12.6千克，还剩4.3千克，这袋面粉有多少千克？
<gadget id="calculator">8.5 + 12.6 + 4.3</gadget>
<output>25.4</output>

<result>25.4</result>