The cafeteria bought 280 kilograms of vegetables, planned to eat 40 kilograms per day, but actually ate less than 5 kilograms per day, how many days can this batch of vegetables actually be eaten? How many days did you actually eat more than planned?
食堂买来280千克菜，计划每天吃40千克，实际每天少吃5千克，这批菜实际能吃几天？实际比计划多吃几天？
<gadget id="calculator">40 - 5</gadget>
<output>35</output>

<gadget id="calculator">280 / 35</gadget>
<output>8</output>

<gadget id="calculator">280 / 40</gadget>
<output>7</output>

<gadget id="calculator">8 - 7</gadget>
<output>1</output>

<result>1</result>