Xiaosheng read a 420-page storybook, 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?
小胜看一本420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">420 / 5</gadget>
<output>84</output>

<gadget id="calculator">420 / 7</gadget>
<output>60</output>

<gadget id="calculator">84 - 60</gadget>
<output>24</output>

<result>24</result>