Two masters and apprentices process parts, the master can process 756 parts in a week, and the apprentice can process 476 parts in 7 days. The master processes (how many) more parts per day on average.
师徒两人加工零件，师傅一周能加工756个零件，徒弟7天能加工476个零件．师傅平均每天徒弟多加工(多少)个零件．
<gadget id="calculator">756 / 7</gadget>
<output>108</output>

<gadget id="calculator">476 / 7</gadget>
<output>68</output>

<gadget id="calculator">108 - 68</gadget>
<output>40</output>

<result>40</result>