Mingming plans to practice 260 brush characters, but he has already practiced 140 characters, and the rest will take 5 days to complete. How many characters should he practice on average every day?
明明计划练260个毛笔字，已经练了140个字，剩下的要5天完成，明明平均每天的要练多少个字？
<gadget id="calculator">260 - 140</gadget>
<output>120</output>

<gadget id="calculator">120 / 5</gadget>
<output>24</output>

<result>24</result>