Xiao Ming buys 2 pencils and 5 exercise books for 3.6 yuan, and each pencil is 0.25 yuan. How much is each exercise book?
小明买2支铅笔和5本练习本共用3.6元，每支铅笔0.25元，每本练习本多少元？
<gadget id="calculator">0.25 * 2</gadget>
<output>0.5</output>

<gadget id="calculator">3.6 - 0.5</gadget>
<output>3.1</output>

<gadget id="calculator">3.1 / 5</gadget>
<output>0.62</output>

<result>0.62</result>