The master processes 80 parts, which is 10 fewer than twice as many as the apprentice. How many parts does the apprentice process?
师傅加工零件80个，比徒弟的2倍少10个，徒弟加工多少个零件？
<gadget id="calculator">80 + 10</gadget>
<output>90</output>

<gadget id="calculator">90 / 2</gadget>
<output>45</output>

<result>45</result>