There are 4,500 kilograms of flour in the cafeteria. After eating 1,860 kilograms, I bought another 2,860 kilograms. How many kilograms of flour are there in the cafeteria now?
食堂里有面粉4500千克，吃了1860千克后，又买了2860千克，现在食堂里有面粉多少千克？
<gadget id="calculator">4_500 - 1_860</gadget>
<output>2_640</output>

<gadget id="calculator">2_640 + 2_860</gadget>
<output>5_500</output>

<result>5_500</result>