Xiaoli read a 280-page story book, planned to finish it in 7 days, but actually finished it in 5 days. How many more pages do you actually read per day on average than planned?
小力看一本280页的故事书，计划7天看完，实际5天看完了．实际平均每天比计划多看多少页？
<gadget id="calculator">280 / 5</gadget>
<output>56</output>

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

<gadget id="calculator">56 - 40</gadget>
<output>16</output>

<result>16</result>