Xiaofang bought 8 exercise books, paid 5 yuan, and got back 0.2 yuan. How much is each exercise book?
小芳买了8个练习本，付出5元，找回0.2元，每个练习本多少钱？
<gadget id="calculator">5 - 0.2</gadget>
<output>4.8</output>

<gadget id="calculator">4.8 / 8</gadget>
<output>0.6</output>

<result>0.6</result>