The cafeteria used to have 240 kilograms of flour, but now we have bought 5 bags of 60 kilograms each. How many kilograms of flour are there in the cafeteria?
食堂原有240千克面粉，现在又买来5袋，每袋60千克，现在食堂有面粉多少千克？
<gadget id="calculator">5 * 60</gadget>
<output>300</output>

<gadget id="calculator">300 + 240</gadget>
<output>540</output>

<result>540</result>