The cafeteria bought 240 kilograms of vegetables, and after eating some, there was still 160 kilograms left. How many kilograms did you eat?
食堂买来240千克的菜，吃了一些还剩下160千克，吃了多少千克？
<gadget id="calculator">240 - 160</gadget>
<output>80</output>

<result>80</result>