An uncle fruit farmer packed 20 kilograms of apples into a box, and packed 280 boxes in total. How many kilograms of apples did this uncle fruit farmer harvest in total?
一位果农叔叔把收获的苹果每20千克装一箱，共装了280箱，这位果农叔叔共收获苹果多少千克？
<gadget id="calculator">25 * 280</gadget>
<output>7_000</output>

<result>7_000</result>