Xiao Ming bought 5 exercise books and 8 pencils, and spent a total of 6.85 yuan. Knowing that each exercise book is 0.65 yuan, how much is each pencil?
小明买了5本练习本和8支铅笔，一共花了6.85元，已知每本练习本0.65元，每支铅笔多少钱？
<gadget id="calculator">5 * 0.65</gadget>
<output>3.25</output>

<gadget id="calculator">6.85 - 3.25</gadget>
<output>3.6</output>

<gadget id="calculator">3.6 / 8</gadget>
<output>0.45</output>

<result>0.45</result>