Teacher Zhang took 800 yuan to buy science and technology books, bought 64 of the same science and technology books, and left 32 yuan. How much is each technical book?
张老师带800元钱去买科技书，买了64本同样的科技书，还剩32元．每本科技书多少钱？
<gadget id="calculator">800 - 32</gadget>
<output>768</output>

<gadget id="calculator">768 / 64</gadget>
<output>12</output>

<result>12</result>