A panda eats 18 kilograms of food a day, and an elephant eats 495 kilograms of food in 9 days. How much more does an elephant eat on average than a panda?
熊猫每天吃食物18千克，大象9天吃食物495千克，大象平均每天吃的食物比熊猫多多少千克？
<gadget id="calculator">495 / 9</gadget>
<output>55</output>

<gadget id="calculator">55 - 18</gadget>
<output>37</output>

<result>37</result>