Guangming Experimental Primary School bought 8 boxes of teaching aids, 7 pieces in each box, and the total cost is 1008 yuan. How much does each teaching aid cost on average?
光明实验小学买来8盒教具，每盒7件，共用去1008元，平均每件教具要多少钱？
<gadget id="calculator">7 * 8</gadget>
<output>56</output>

<gadget id="calculator">1_008 / 56</gadget>
<output>18</output>

<result>18</result>